2021 Chevrolet Colorado ZR2 Diesel Extended Cab

MSRP $41,400 - $41,600 | Check Best Price

Ranked #22 in Midsize Pickup-trucks

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2021 Chevrolet Colorado ZR2 Extended Cab Price, Review, Ratings and Pictures

Updated on: November 20, 2020

C. Khandelwal's image
C. Khandelwal

Automotive Journalist

The Mid-Sized Hauler, Colorado from Chevrolet got an incremental upgrade for the 2021 model year. The front end has been re-designed to look sleek and modern. Along with that, there have been few changes to the standard and optional features. Cut to the chase, The ZR2 is the top tier trim offered by Chevrolet geared towards off-road prowess. Being an off-road-focused truck it is offered as 4WD only. The trim starts at $42,795. Duramax Diesel is exclusive to the top of the line ZR2 trim and will push the base price up to $46,295. And if we are being honest the Diesel Variant is the way to go with the new Colorado ZR2.

See Detailed Review »


The diesel engine tows more than rivals

Great handling and steering response

Cumbersome free cabin


Seating space may seem inadequate to some, especially the front seats

Low hanging front airdam limits off-road capabilities

What's New?

New Front end

Trim structure changed

Changes to standard and optional equipment

See all »


vehicle bio

base price



4dr Extended Cab

passenger capacity



four wheel drive

engine type


217 cu.in.


308 hp @ 6800 rpm


275 lb.-ft.. @ 4000 rpm


8-speed Automatic


suspension front

Independent front short and long arm suspension w/anti-roll bar

brake rotors (f/r)

12.8/12.2 in.



128.5 in.


212.4 in.


76.7 in.


72.5 in.

curb weight

4612 lbs.

ground clearance

10 in.


passenger volume

37.8 cu ft.

cargo volume

44 cu ft.

towing capacity

5000 lbs.

payload capacity

1350 lbs.


zero to 60 mph

8.2 sec.

standing 1/4-mile

16.3 sec.


basic warranty

3 yr./ 36000 mi.

drivetrain warranty

5 yr./ 60000 mi.

corrosion warranty

6 yr./ 100000 mi.

roadside assistance


Pictures & Videos

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Detailed Review video


Base $41,400 onwards

2.8 L | Inline 4 |

  • Daytime Running Lamps
  • HD Rear Vision Camera
  • Heated Mirrors
  • Teen Driver Technology
  • Tire Pressure Monitoring System

Colors and Styles

2021 Chevrolet Colorado ZR2 Diesel Extended Cab in Black color 2021 Chevrolet Colorado ZR2 Diesel Extended Cab in Bright Blue color 2021 Chevrolet Colorado ZR2 Diesel Extended Cab in Crystal Red Tintcoat color 2021 Chevrolet Colorado ZR2 Diesel Extended Cab in Crush color 2021 Chevrolet Colorado ZR2 Diesel Extended Cab in Satin Steel Metallic color 2021 Chevrolet Colorado ZR2 Diesel Extended Cab in Summit White color

Vehicle images are guides only and may not reflect the model's exact specifications/features– exact specifications/features should be confirmed with the seller.

Expert Review, Pricing Analysis and Buying Guide

The small to medium-sized pickup truck segment is quite hot right now with the Chevy Colorado facing rivals like the Ford Ranger, the Honda Ridgeline, the Toyota Tacoma, and the Nissan Frontier. Its main rival however is the Jeep Gladiator Rubicon which is the only other midsize pickup truck on offer with a diesel engine.

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Pricing and Features

The Chevrolet Colorado ZR2 for the 2021 model year can be configured in various ways. Two types of Cabin options are available Extended Cab that will seat 4 people (suitable for shorter distances) and the Crew Cab that is ideal for seating 5 people comfortably. These two types of cabins are paired with different sizes of beds. If you opt for the Extended Cab configuration you get the Long Box Bed and if you go for the more spacious Crew Cab you end up with a Short Box Bed. So there’s a choice to be made with the ZR2, either more cabin space or more bed capacity.


Colorado ZR2 Extended Cab Diesel



Key Features

Heated steering wheel


Power adjustable heated front seats


17-inch alloy wheels


Apple CarPlay/Android Auto


Cruise Control

The ZR2 is the most off-road oriented of all the variants and comes with useful off-road features like Two Speed transfer case, a transfer-case shield, and driver-selectable full-locking front and rear differentials. The truck also comes with creature comforts like a heated steering wheel, heated front seats, power adjusted seats, and many more, so that you can be as comfy as possible while tearing-down hills in your off-road truck.

You can add more of the off-road flair by opting for the Bison Package for $5,750. The package offers AEV designed front and rear bumpers with winching points, AEV hot-stamped skid plates for the front differential, engine oil pan, transfer case, fuel tank, and rear differential, AEV designed fenders and 17' alloys (including the spare), and fog lamps.

Chevrolet also offers a Power Package for $1,850 that includes Performance Air Intake System and Cat-Back Performance Exhaust to squeeze a few extra hp out of the engine.

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Maintenance, Reliability and Warranty

Chevrolet has been in the car business for a long time and they certainly know how to make reliable and dependable cars. The Chevrolet Colorado series has stood the test of time quite well. Be it JD Power Ratings or Consumer Reports the overall reviews on the car are generally positive and ever-improving.

Reliability and Ownership Costs

2021 Chevrolet Colorado ZR2 scored a respectable 80/100 on the JD Power Ratings. The fragmented score shows the highs and lows of the new Chevy. It scored 81/100 on the Reliability Aspect. Followed by 69/100 on the Driving Experience and 88/100 on the Dealership Experience. On the Resale side, it scored a pretty neat 83/100. Overall it seems the Chevy Colorado is a neat package for the price.

The total expense occurred in 5 years amounted to $44,991. The break-up of this figure is as follows


Year 1

Year 2

Year 3

Year 4

Year 5


Tax Credit




























Taxes & Fees




























Real cost of ownership







National Highway Traffic Safety Administration (NHTSA) rated the 2021 Chevy Colorado a solid 4 stars out of 5 on the Safety Rating. Moreover, the car has seen no recalls to date. Chevrolet also has a respectable track record in Reliability and Consumer Communications for any issues and faults in their cars. Due to this, they scored an excellent 86/100 on the Dealership Experience at the JD power ratings.


Chevrolet offers the industry standard 3 years or 36,000 miles of Bumper to Bumper warranty which has you covered on all fronts. The powertrain warranty is 5 years or 60,000 miles which is better than most in the segment. Chevy also offers 24-hour roadside assistance for 5 years / 100,000 miles which are way better than the manufacturers that offer 24-hour assistance as long as the Limited Warranty Coverage. Other than these Chevrolet also offers an optional Extended Warranty for 5 years or 60,000 miles.



Bumper to bumper Limited Warranty

3 years/ 36,000 miles; whichever is earlier

Powertrain warranty

5 years/ 60,000 miles; whichever is earlier

24-hour roadside assistance

5 years/ 100,000 miles; whichever is earlier

Miles to Dollar

The Colorado ZR2 manages a miles to dollar ratio of 0.997

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Buying Advice

If you are looking for a rugged off-road vehicle without needing to break a bank for the expensive big trucks. The Chevrolet Colorado ZR2 Diesel is a great option for the price. The car offers tons of creature comforts like heated seats and heated steering wheel and driver aids like cruise control as standard. Off-Road features are plenty and useful for this midsize pickup. If you are willing to look past the all hard plastic interior, the overall built quality of the interior is pretty good and nothing feels wobbly or loose.

The standard Chevrolet Colorado might not hold on its own against stiff competition with the likes of Ford Ranger, Jeep Gladiator, and Honda Ridgeline. But with the ZR2 trim with the Diesel Engine and off-road prowess, it seems to fight back pretty well and poses as an interesting package for the buyers in the Off-Road market.

Is buying a used Chevrolet Colorado ZR2 Extended Cab Diesel a good idea?

Chevrolet cars don't seem to lose a ton of value over the years. Depreciation is way less compared to rivals like Jeep and JD Power Rating gave a very respectable 83 out of 100 in the Resale Value Aspect. The car seems to lose about 12% of the value in the first year which is pretty reasonable considering its Off-Road oriented user base. Overall in 5 years, the car loses approx. 12 grand. If you are looking for an off-road truck at a fairly reasonable price which will in turn hold value for a few more years, then the Chevrolet Colorado ZR2 is a neat package to opt for.

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Engine and Performance

The 2.8 L 4-Cylinder Duramax Turbo-Diesel engine is offered at a premium price of $46,295. The engine puts out 181 hp and 369 lb-ft of torque at low revs where it is most needed in an off-road vehicle like this. If you opt for the Duramax Diesel engine you get the 6-speed automatic transmission instead of the 8-speed automatic on other models. Another additional benefit of opting for the diesel engine is the Diesel Exhaust Brake. This reduces the amount of conventional braking needed while towing a heavy trailer or driving downhill.


2021 Chevrolet Colorado ZR2 Extended Cab Diesel

2021 Jeep Gladiator Rubicon Diesel





2.8 L 4-Cylinder Duramax Turbo Diesel

3.0 L Turbo-Diesel V6





6-speed automatic

8 speed automatic


181 hp @ 3,400 rpm

260 hp @ 3,600 rpm


369 lb-ft @ 2,000 rpm

442 lb-ft @ 2,000 rpm

The Chevrolet Colorado ZR2 and the Jeep Gladiator Rubicon Diesel are the only two diesel midsize trucks on the market right now. The engine produces necessary low-end torque which outclasses even the larger gas engines of the rivals. However, the more expensive Jeep puts out way more hp and torque compared to Colorado. Torque is indeed the name of the game in this segment and Chevrolet certainly outperforms everyone except the Jeep. Being a Duramax Turbo-Diesel it will be pretty economical compared to its gas rivals.

2021 Chevrolet Colorado ZR2 Extended Cab Diesel Acceleration andBraking Performance

The Chevrolet Colorado ZR2 with the diesel engine isn't much of a performer on the drag strips. Due to its torque-focused Duramax Diesel engine, the car puts out significantly low horsepower figures compared to its rivals with gasoline engines. Braking is acceptable at 132 ft to a dead stop from 60 mph.

The Chevrolet Colorado remains the Towing King for the 2021 model year with its impressive towing capacity of 7,700 pounds with towing assistance. Even the Jeep Rubicon equipped with all the towing enhancements cannot take down the Colorado ZR2 Diesel.


2021 Chevrolet Colorado ZR2 Extended Cab Diesel

2021 Jeep Gladiator Rubicon Diesel

0-60 MPH

9.1 seconds

8.5 seconds

Quarter Mile

19.9 seconds

18 seconds

Top Speed

99 MPH

97 MPH

60-0 MPH

132 feet

129 feet

Max Towing Capacity

7,700 lbs

7,650 lbs

However, these figures don't matter. Let's be honest, how often are you going to drag race in your utilitarian pick-up truck. Chevrolet Colorado ZR2 Diesel will outperform all these trucks on off-road and in practicality due to its Diesel offering.

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Fuel Economy

The 2.8 L 4-Cylinder Duramax Turbo-Diesel engine holds up pretty well being a diesel engine. The fuel economy is comparable to its rivals, but when you consider the lower price of diesel compared to gasoline, the truck seems very lucrative and cost-effective. With a sufficient fuel tank of 21 gallons, the Chevrolet Colorado ZR2 can rake up 420 miles of range with a full tank. 


2021 Chevrolet Colorado ZR2 Extended Cab Diesel

2021 Jeep Gladiator Rubicon Diesel

MPG (City)



MPG (Highway)



MPG (Combined)



Fuel Capacity

21 gallons

19 gallons

Range (City/Highway/Combined)

378/462/420 miles

418/532/456 miles

The slightly more expensive Jeep Gladiator Rubicon Diesel gives better mileage performance by a landslide. Thus, its newly refined EcoDiesel not only puts out better numbers but also better fuel economy.

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Interior

Being an off-road-focused pick-up truck, the interior is not a high point in the Chevrolet Colorado. The ZR2 trim gets many convenient creature comforts like Heated Front Seats, Heated Steering Wheels, Multiple-way adjusting Power Operated Front Seats, Genuine Leather Upholstery, and many more. All these features are great but they can’t mask the overall look of the interior that is laced with cheap and hard plastic. The dashboard layout seems outdated and the interior cabins of its rivals are more appealing. However, the cabin noise is minimum with good quality insulation and there are no wobbly or shaky bits anywhere in the cabin.


2021 Chevrolet Colorado ZR2 Extended Cab Diesel

2021 Jeep Gladiator Rubicon Diesel

Seating Capacity



Front Row (Head/Shoulder/Leg) (in)



Rear Row (Head/Shoulder/Leg) (in)



If you opt for the extended cab layout keep in mind that the rear is cramped and will seat 4 adults only for a shorter period. The rear seats are okay for just kids. Jeep offers a seating capacity for 5 people and is spacious in the rear row too.

How good is the 2021 Chevrolet Colorado ZR2 Extended Cab Diesel’s infotainment system?

As standard, you get an 8-inch infotainment display with the General Motors Touch Pro interface. It is fairly responsive and intuitive and will get the job done in your utility pickup truck. The car comes with various key features as listed. The car also comes with a 6-speaker surround system which is more than enough for the Extended Cab version. You may upgrade to a Bose Premium Sound system via options.

  • Bluetooth streaming
  • Apple CarPlay and Android Auto
  • Two USB ports front and Wireless Charging
  • Auxiliary Cable Input
  • Voice Recognition System
  • Bluetooth Audio Streaming
  • AM/FM/HD Radio
  • SiriusXM Satellite Radio

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Exterior

Chevrolet Colorado got some exterior changes for the 2021 model year with new styling elements in the front and rear. The car looks modern and has caught up with the Ford Ranger in terms of design. However, that's subjective and open to interpretation. Where the ZR2 Colorado shines is sheer presence and practicality. 


2021 Chevrolet Colorado ZR2 Extended Cab Diesel

2021 Jeep Gladiator Rubicon Diesel

Curb Weight

4,641 lbs

50,50 lbs










Ground Clearance






Colorado offers the largest cargo space if you go for the long box configuration. The bed is the largest in the segment at 6.1 feet and 50 cubic feet of volume. The Chevrolet Colorado ZR2 also gets class-leading ground clearance at 10 inches thus increasing its off-road prowess in the segment.

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Safety

At the National Highway Traffic Safety Administration (NHTSA) crash tests the Chevrolet Colorado performed adequately for the segment and garnered 4 stars out of 5. It scored 4 stars on all the frontal crash tests. It scored a perfect 5 stars on all the side crash tests due to its refined chassis and safety technology. It scored poorly on the Rollover Test with just 3 stars out of 5. Overall it's on par with the competition in terms of safety ratings. It also performed quite well on the Insurance Institute for Highway Safety (IIHS) safety tests.

Here are some of the stand out safety features offered on the Chevrolet Colorado ZR2

  • Forward collision warning
  • Lane departure warning
  • Traction Control
  • Reinforced Safety cage
  • High strength steel frame

Apart from these the car also comes with a host of driver aids such as cruise control, towing assistance, off-road assistance, adaptive dampers, and many more to enhance the utilitarian prowess of the ZR2.

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Competition

2021 Chevrolet Colorado ZR2 Extended Cab Diesel vs 2021 Jeep Gladiator Rubicon Diesel

This is a tough fight for the new Chevy Colorado. The Jeep Gladiator Rubicon Diesel is slightly better in almost every aspect just for a marginal price upgrade over the ZR2. However, the ZR2 also packs a punch with its off-road prowess and can easily keep toe to toe with the Jeep Gladiator Rubicon. Another thing that's going for the Chevy is the better Payload Capacity and excellent Towing Capacity. Anyway, buyers are likely to be satisfied with either of these capable off-road champs.

2021 Chevrolet Colorado ZR2 Diesel Extended Cab Final Verdict

The Chevrolet Colorado is an average pick-up truck which will get the job done. However, the ZR2 Diesel Trim adds the needed zing to the lineup. The off-road capabilities combined with the Duramax Diesel offering makes it one of the rare breeds. If you seek a rugged, durable and utilitarian vehicle for your business then the Chevrolet Colorado ZR2 is a convenient buy.