2019 head-to-head · Two-Seater
2019 BMW Z4 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.
RWD · 2.0L 4-cyl turbo · 8-speed automatic · 28 MPG
The 2019 BMW Z4 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,116 a year to fuel (28 MPG), versus $2,576 for the 2019 Mercedes-Benz SL-Class (23 MPG). That's roughly $460 a year, or about $2,300 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
- BMW Z4
- Mercedes-Benz SL-Class
Side by side
| BMW Z4 | Mercedes-Benz SL-Class | |
|---|---|---|
| $2,116 | Your annual fuel cost | $2,576 |
| 28 MPG | Combined efficiency | 23 MPG |
| 25 MPG | City | 20 MPG |
| 32 MPG | Highway | 28 MPG |
| 321 g/mi | Tailpipe CO₂ (g/mi) | 387 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| RWD | 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.
BMW Z4 vs Mercedes-Benz SL-Class across model years
- BMW Z4
- 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
Among 34 2019 two-seaters, the BMW Z4 ranks 5th and the Mercedes-Benz SL-Class 11th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2019 BMW Z4 or the 2019 Mercedes-Benz SL-Class?
Measured by cost to drive, the BMW Z4. The BMW Z4 is rated 28 MPG combined and the Mercedes-Benz SL-Class 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2019 BMW Z4 vs. the Mercedes-Benz SL-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,116 for the BMW Z4 and $2,576 for the Mercedes-Benz SL-Class.
BMW Z4 vs Mercedes-Benz SL-Class in other years
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