2026 head-to-head · Compact Car
2026 Genesis G70 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 2026 Genesis G70 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,469 a year to fuel (24 MPG), versus $2,693 for the 2026 Lexus IS (22 MPG). That's roughly $224 a year, or about $1,122 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
- Genesis G70
- Lexus IS
Side by side
| Genesis G70 | Lexus IS | |
|---|---|---|
| $2,469 | Your annual fuel cost | $2,693 |
| 24 MPG | Combined efficiency | 22 MPG |
| 21 MPG | City | 19 MPG |
| 29 MPG | Highway | 27 MPG |
| 94 cu ft | Passenger volume | 90 cu ft |
| 10 cu ft | Cargo volume | 11 cu ft |
| 373 g/mi | Tailpipe CO₂ (g/mi) | 403 g/mi |
| 5/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.5L 4-cyl turbo | Engine / motor | 3.5L 6-cyl |
| 8-speed automatic | Transmission | 8-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.
Genesis G70 vs Lexus IS across model years
- Genesis G70
- 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
Per EPA interior volume figures, the Genesis G70 has more passenger space (94 vs. 90 cu ft); the Lexus IS has more cargo space (11 vs. 10 cu ft).
Among 21 2026 compact cars, the Genesis G70 ranks 17th and the Lexus IS 19th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 Genesis G70 or the 2026 Lexus IS?
Measured by cost to drive, the Genesis G70. The Genesis G70 is rated 24 MPG combined and the Lexus IS 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Genesis G70 vs. the Lexus IS per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the Genesis G70 and $2,693 for the Lexus IS.
Which has more cargo space?
The Lexus IS, with 11 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
Genesis G70 vs Lexus IS in other years
More 2026 comparisons
Genesis G70 vs…
Or compare the 2026 Genesis G70 with anything else: