2020 head-to-head · Two-Seater

2020 Audi TT vs Mercedes-Benz SLC-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.

Swap sides
✓ Cheaper to run
$1,788/ year to fuel
26 MPG
✓ Cheaper to run
$2,194/ year to fuel
27 MPG

The 2020 Audi TT is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, it costs about $1,788 a year to fuel (26 MPG), versus $2,194 for the 2020 Mercedes-Benz SLC-Class (27 MPG). That's roughly $406 a year, or about $2,030 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
  • Mercedes-Benz SLC-Class

Side by side

Audi TTMercedes-Benz SLC-Class
$1,788 Your annual fuel cost $2,194
26 MPG Combined efficiency 27 MPG
23 MPG City 23 MPG
31 MPG Highway 32 MPG
340 g/mi Tailpipe CO₂ (g/mi) 332 g/mi
5/10 EPA fuel economy score 6/10
5/10 EPA greenhouse gas score 6/10
Gas Powertrain Gas
Regular gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
7-speed dual-clutch Transmission 9-speed automatic
AWD Drivetrain RWD

✓ 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 vs Mercedes-Benz SLC-Class across model years

  • Audi TT
  • Mercedes-Benz SLC-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

Among 39 2020 two-seaters, the Audi TT ranks 1st and the Mercedes-Benz SLC-Class 6th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2020 Audi TT or the 2020 Mercedes-Benz SLC-Class?

Measured by cost to drive, the Audi TT. The Audi TT is rated 26 MPG combined and the Mercedes-Benz SLC-Class 27 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2020 Audi TT vs. the Mercedes-Benz SLC-Class per year?

At 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, about $1,788 for the Audi TT and $2,194 for the Mercedes-Benz SLC-Class.

Audi TT vs Mercedes-Benz SLC-Class in other years

More 2020 comparisons

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