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Roush Performance

Roush Performance · model year 2021

2021 Roush Performance Mustang

Subcompact · Rear-Wheel Drive · Gas · EPA class: Subcompact Cars

EPA figures · 2021fueleconomy.gov
15MPG combined
12/19MPG city / highway
$5,500fuel a year
606 g CO₂ per mile 5.0 L 8-cyl supercharged Automatic (S10)
This car on fueleconomy.gov, read 2 October 2026. Your own figures depend on how and where you drive.

Where it places

The CarCody take

The 2021 Roush Performance Mustang is a rear-wheel-drive gasoline car with a 5.0-liter supercharged V8 and a 10-speed automatic transmission. Its EPA fuel economy is 12 MPG in the city, 19 MPG on the highway and 15 MPG combined. The listed EPA annual fuel cost is $5,500, and tailpipe carbon dioxide is 606 grams per mile. The EPA class is Subcompact Cars. These figures give buyers comparing fuel consumption and emissions a clear view of the model’s listed running-cost measures. The entry identifies it as a Mustang from Roush Performance for model year 2021. It does not list electric range or energy use, so the relevant operating details here are gasoline economy, annual fuel cost and tailpipe CO2. The fuel economy figures and cost can help readers assess whether this car’s expected use aligns with their priorities.

Good to know

  • 5.0 L supercharged V8 engine.
  • Rear-wheel drive.
  • Automatic 10-speed transmission.
  • Highway fuel economy is 19 MPG.

Watch for

  • Combined fuel economy is 15 MPG.
  • EPA annual fuel cost is $5,500.
  • City fuel economy is 12 MPG.

Who it suits. It may suit buyers considering a rear-wheel-drive Mustang with a supercharged V8 and who want to weigh its gasoline economy and listed annual fuel cost.

The 2021 Roush Performance Mustang combines a supercharged V8 with rear-wheel drive and an automatic transmission. Its listed fuel economy is 15 MPG combined, with an EPA annual fuel cost of $5,500.

Every figure on record

Efficiency
Combined MPG
15 MPG
City MPG
12 MPG
Highway MPG
19 MPG
Running cost
Annual fuel cost
$5,500
Tailpipe CO₂
606 g per mile
The car
Model year
2021
Body
Car
EPA size class
Subcompact Cars
Drive
Rear-Wheel Drive
Powertrain
Engine
5.0 L 8-cyl supercharged
Transmission
Automatic (S10)
Fuel
Gasoline

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