2025 head-to-head · Compact Car
2025 Lexus IS vs Mercedes-Benz AMG GT Plug-in Hybrid
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2025 Lexus IS is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, it costs about $2,370 a year to fuel (25 MPG), versus $2,541 for the 2025 Mercedes-Benz AMG GT Plug-in Hybrid (28 MPGe + 19 MPG). That's roughly $171 a year, or about $855 over five years.
Your numbers
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Fuel cost over 10 years
- Lexus IS
- Mercedes-Benz AMG GT Plug-in Hybrid
Side by side
| Lexus IS | Mercedes-Benz AMG GT Plug-in Hybrid | |
|---|---|---|
| $2,370 | Your annual fuel cost | $2,541 |
| 25 MPG | Combined efficiency | 28 MPGe + 19 MPG |
| 21 MPG | City | 32 MPGe / 16 MPG |
| 31 MPG | Highway | 24 MPGe / 22 MPG |
| — | Electricity use (kWh/100 mi) | 42 kWh |
| — | Driving range | 360 mi |
| — | All-electric range | 11 mi |
| 90 cu ft | Passenger volume | 81 cu ft |
| 11 cu ft | Cargo volume | 11 cu ft |
| 356 g/mi | Tailpipe CO₂ (g/mi) | 397 g/mi |
| 5/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| — | Charge time at 240V | 1.1 hrs |
| Gas | Powertrain | Plug-in hybrid |
| Premium gasoline | Fuel | Premium gas + electricity |
| 2.0L 4-cyl turbo | Engine / motor | 4.0L 8-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| RWD | 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.
Lexus IS vs Mercedes-Benz AMG GT Plug-in Hybrid across model years
- Lexus IS
- Mercedes-Benz AMG GT Plug-in Hybrid
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 Lexus IS has more passenger space (90 vs. 81 cu ft).
Among 26 2025 compact cars, the Lexus IS ranks 19th and the Mercedes-Benz AMG GT Plug-in Hybrid 23rd for lowest fuel cost.
The powertrains differ: the Lexus IS is a conventional gas model, while the Mercedes-Benz AMG GT Plug-in Hybrid is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2025 Lexus IS or the 2025 Mercedes-Benz AMG GT Plug-in Hybrid?
Measured by cost to drive, the Lexus IS. The Lexus IS is rated 25 MPG combined and the Mercedes-Benz AMG GT Plug-in Hybrid 28 MPGe + 19 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 Lexus IS vs. the Mercedes-Benz AMG GT Plug-in Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, about $2,370 for the Lexus IS and $2,541 for the Mercedes-Benz AMG GT Plug-in Hybrid.
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