2022 head-to-head · Subcompact Car
2022 Audi TT RS vs Mercedes-Benz SL-Class
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 2.5L 5-cyl turbo · 7-speed dual-clutch · 23 MPG
AWD · 4.0L 8-cyl turbo · 9-speed automatic · 16 MPG
The 2022 Audi TT RS is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,576 a year to fuel (23 MPG), versus $3,703 for the 2022 Mercedes-Benz SL-Class (16 MPG). That's roughly $1,127 a year, or about $5,635 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Audi TT RS
- Mercedes-Benz SL-Class
Side by side
| Audi TT RS | Mercedes-Benz SL-Class | |
|---|---|---|
| $2,576 | Your annual fuel cost | $3,703 |
| 23 MPG | Combined efficiency | 16 MPG |
| 20 MPG | City | 14 MPG |
| 29 MPG | Highway | 21 MPG |
| 74 cu ft | Passenger volume | 76 cu ft |
| 13 cu ft | Cargo volume | 6 cu ft |
| 377 g/mi | Tailpipe CO₂ (g/mi) | 546 g/mi |
| 5/10 | EPA fuel economy score | 3/10 |
| 5/10 | EPA greenhouse gas score | 3/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.5L 5-cyl turbo | Engine / motor | 4.0L 8-cyl turbo |
| 7-speed dual-clutch | Transmission | 9-speed automatic |
| AWD | Drivetrain | AWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Audi TT RS vs Mercedes-Benz SL-Class across model years
- Audi TT RS
- Mercedes-Benz SL-Class
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the Audi TT RS has more cargo space (13 vs. 6 cu ft).
Among 34 2022 subcompact cars, the Audi TT RS ranks 23rd and the Mercedes-Benz SL-Class 34th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2022 Audi TT RS or the 2022 Mercedes-Benz SL-Class?
Measured by cost to drive, the Audi TT RS. The Audi TT RS is rated 23 MPG combined and the Mercedes-Benz SL-Class 16 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2022 Audi TT RS vs. the Mercedes-Benz SL-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Audi TT RS and $3,703 for the Mercedes-Benz SL-Class.
Which has more cargo space?
The Audi TT RS, with 13 cu ft of luggage volume versus 6 cu ft (EPA interior volume index).
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