2015 head-to-head · Midsize Car
2015 Acura RLX vs Infiniti Q50
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · 3.5L 6-cyl · 6-speed automatic · 23 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2015 Acura RLX (23 MPG) costs about $2,576 a year to fuel and the 2015 Infiniti Q50 (23 MPG) about $2,576.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Acura RLX
- Infiniti Q50
Side by side
| Acura RLX | Infiniti Q50 | |
|---|---|---|
| $2,576 | Your annual fuel cost | $2,576 |
| 23 MPG | Combined efficiency | 23 MPG |
| 20 MPG | City | 20 MPG |
| 30 MPG | Highway | 29 MPG |
| 102 cu ft | Passenger volume | 102 cu ft |
| 15 cu ft | Cargo volume | 14 cu ft |
| 381 g/mi | Tailpipe CO₂ (g/mi) | 384 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 |
| 3.5L 6-cyl | Engine / motor | 3.7L 6-cyl |
| 6-speed automatic | Transmission | 7-speed automatic |
| FWD | 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.
Acura RLX vs Infiniti Q50 across model years
- Acura RLX
- Infiniti Q50
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 Acura RLX has more cargo space (15 vs. 14 cu ft).
Among 69 2015 midsize cars, the Acura RLX ranks 53rd and the Infiniti Q50 54th for lowest fuel cost.
Frequently asked questions
How much does it cost to fuel the 2015 Acura RLX vs. the Infiniti Q50 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Acura RLX and $2,576 for the Infiniti Q50.
Which has more cargo space?
The Acura RLX, with 15 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
Acura RLX vs Infiniti Q50 in other years
More 2015 comparisons
Acura RLX vs…
Or compare the 2015 Acura RLX with anything else: