2018 Mercedes-Benz Sl450
23MPG
Combined
1
Trim
Updated February 27, 2026
The 2018 Mercedes-Benz Sl450 is a Sports Car that delivers 23 combined MPG. Here’s everything you need to know about this vehicle, from fuel economy to safety ratings.
2018 Mercedes-Benz Sl450 Specifications
| Spec | Value |
|---|---|
| Combined MPG | 23 combined MPG |
| City MPG | 20 |
| Highway MPG | 28 |
| Body Style | Sports Car |
| Fuel Type | Premium |
| Drive | RWD |
| Available Trims | 1 |
Annual Fuel Cost
Based on EPA estimates, the 2018 Mercedes-Benz Sl450 costs approximately $2,550 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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