2021 Dodge Challenger — Full Specifications
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The 2021 Dodge Challenger is a coupe offered with 4 engines (3.6L 6-cyl, 5.7L 8-cyl, 6.2L 8-cyl supercharged). Its most fuel-efficient configuration returns around 28 mpg (UK) / 23 mpg (US EPA) combined, with 19–28 mpg (UK) across all configurations. Owners often keep a Dodge Challenger workshop manual to hand for servicing and repairs.
Related 2021 listings: Dodge Challenger SRT.
Compared with the 2020 Dodge Challenger: Fuel economy is essentially unchanged at around 28 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine (most efficient) | 3.6L 6-cyl |
|---|---|
| Engine options | 3.6L 6-cyl · 5.7L 8-cyl · 6.2L 8-cyl supercharged · 6.4L 8-cyl |
| Transmission (most efficient) | Automatic 8-spd |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Rear-Wheel Drive |
| Body Style | Coupe |
| Passenger Volume (EPA) | 94 cu ft (2,662 L) |
| Luggage Volume (EPA) | 16 cu ft (453 L) |
| Fuel Economy (UK) | 28 combined / 23 urban / 36 extra-urban mpg |
| Fuel Economy (US EPA) | 23 combined / 19 city / 30 highway mpg |
| CO₂ Emissions | 242 g/km |
| EPA Greenhouse Gas Score | 3 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,900 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 8 configurations for the 2021 Dodge Challenger across 4 engines (3.6L 6-cyl, 5.7L 8-cyl, 6.2L 8-cyl supercharged, 6.4L 8-cyl). Combined fuel economy ranges from 16 to 23 mpg (US), or 19 to 28 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 3.6L 6-cyl | Automatic 8-spd | All-Wheel Drive | 25 | 21 (18/27) | 258 | $3,200 |
| 3.6L 6-cyl | Automatic 8-spd | Rear-Wheel Drive | 28 | 23 (19/30) | 242 | $2,900 |
| 5.7L 8-cyl | Automatic 8-spd | Rear-Wheel Drive | 23 | 19 (16/25) | 290 | $4,000 |
| 5.7L 8-cyl | Manual 6-spd | Rear-Wheel Drive | 22 | 18 (15/23) | 307 | $4,550 |
| 6.2L 8-cyl supercharged | Automatic 8-spd | Rear-Wheel Drive | 19 | 16 (13/22) | 339 | $5,150 |
| 6.2L 8-cyl supercharged | Manual 6-spd | Rear-Wheel Drive | 19 | 16 (13/21) | 352 | $5,150 |
| 6.4L 8-cyl | Automatic 8-spd | Rear-Wheel Drive | 22 | 18 (15/24) | 308 | $4,550 |
| 6.4L 8-cyl | Manual 6-spd | Rear-Wheel Drive | 20 | 17 (14/23) | 325 | $4,850 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 94 cubic feet (about 2,662 litres) and luggage volume at 16 cubic feet (about 453 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2021 Dodge Challenger
Running Costs: 2021 Dodge Challenger
Covering around 8,000 miles a year in a 2021 Dodge Challenger at 28 mpg combined, expect roughly 1,299 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,900 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2021 Dodge Challenger Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2021 Dodge Challenger (as of 6 October 2026). Most affected areas: Electrical system (1), Visibility (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Electrical system — campaign 21V664000, reported 26 August 2021. Risk: Without visible safety system indicators, a driver may not receive information regarding vehicle safety, increasing the risk of injury or a crash.
- Visibility — campaign 21V516000, reported 8 July 2021. Risk: A windshield that separates from the vehicle during a crash can increase the risk of injury.
Owners have filed 19 complaints with NHTSA about the 2021 Dodge Challenger. The most-reported areas are Electrical system (4), Air bags (4), Power train (3). Complaints include 4 reported crashes, 1 reported fire, 2 reported injuries. That is well below the median of 76 complaints across the 14 Dodge Challenger model years in our data.
Used-buyer checklist for the 2021 Dodge Challenger
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (1 recall campaign · 4 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Visibility (1 recall campaign) — Check wipers, washers and demisters work properly.
- Air bags (4 owner complaints) — Confirm any air bag inflator or module recalls were completed — enter the VIN at nhtsa.gov/recalls.
- Transmission & drivetrain (3 owner complaints) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
How does the Dodge Challenger compare to similar coupes? For context, coupes in our database average around 25 mpg (UK) combined — this model's 28 mpg figure is 3 mpg better than that average. Its 242 g/km CO₂ figure is 36 g/km lower than the 278 g/km average for coupes on this site. This comparison is based on 1072 coupes in our dataset.
Dodge models in our database average about 25 mpg (UK) combined on their most efficient configuration; the 2021 Dodge Challenger's 28 mpg is 3 mpg above that make average. Its 242 g/km CO₂ figure is 27 g/km lower than the 269 g/km Dodge average.
Of the 14 Dodge Challenger model years we cover, the 2021 is the most economical on its best configuration (28 mpg UK combined). See every Dodge Challenger year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2021 Dodge Challenger
Frequently Asked Questions
What engine does the 2021 Dodge Challenger have?
EPA lists 4 engines for the 2021 Dodge Challenger: 3.6L 6-cyl, 5.7L 8-cyl, 6.2L 8-cyl supercharged, 6.4L 8-cyl. The most fuel-efficient configuration pairs the 3.6L 6-cyl with a automatic 8-spd.
What is the fuel economy of the 2021 Dodge Challenger?
The most efficient configuration returns around 28 mpg (UK) combined, or 23 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 19 to 28 mpg.
How much does the 2021 Dodge Challenger cost to fuel per year?
The US EPA estimates about $2,900 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2021 Dodge Challenger have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 4 stars for frontal crash protection.
Does the 2021 Dodge Challenger have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2021 Dodge Challenger (as of 6 October 2026). Most affected areas: Electrical system (1), Visibility (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2021 Dodge Challenger?
Among the 19 owner complaints filed with NHTSA, the most-reported areas are Electrical system (4 complaints), Air bags (4 complaints), Power train (3 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2021 Dodge Challenger have?
EPA measures interior passenger volume at 94 cubic feet (about 2,662 litres) and luggage volume at 16 cubic feet (about 453 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.
Is the Dodge Challenger's fuel economy good for a coupe?
Yes — it returns around 28 mpg (UK) combined, against a same-body-style average of roughly 25 mpg among the coupes we track, making it one of the more efficient options in its class.