2015 head-to-head · Compact Car
2015 BMW 4 Series vs Lexus IS
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 2015 BMW 4 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,194 a year to fuel (27 MPG), versus $2,469 for the 2015 Lexus IS (24 MPG). That's roughly $274 a year, or about $1,372 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 4 Series
- Lexus IS
Side by side
| BMW 4 Series | Lexus IS | |
|---|---|---|
| $2,194 | Your annual fuel cost | $2,469 |
| 27 MPG | Combined efficiency | 24 MPG |
| 23 MPG | City | 21 MPG |
| 34 MPG | Highway | 30 MPG |
| 90 cu ft | Passenger volume | 90 cu ft |
| 11 cu ft | Cargo volume | 11 cu ft |
| 327 g/mi | Tailpipe CO₂ (g/mi) | 364 g/mi |
| 7/10 | EPA fuel economy score | 6/10 |
| 7/10 | EPA greenhouse gas score | 6/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 2.5L 6-cyl |
| 8-speed automatic | Transmission | 6-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 4 Series vs Lexus IS across model years
- BMW 4 Series
- Lexus IS
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 52 2015 compact cars, the BMW 4 Series ranks 43rd and the Lexus IS 46th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2015 BMW 4 Series or the 2015 Lexus IS?
Measured by cost to drive, the BMW 4 Series. The BMW 4 Series is rated 27 MPG combined and the Lexus IS 24 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 BMW 4 Series vs. the Lexus IS per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,194 for the BMW 4 Series and $2,469 for the Lexus IS.
BMW 4 Series vs Lexus IS in other years
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