2018 head-to-head · Midsize Car
2018 Audi RS 7 vs Cadillac CTS-V
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 4.0L 8-cyl turbo · 8-speed automatic · 17 MPG
RWD · 6.2L 8-cyl supercharged · 8-speed automatic · 17 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2018 Audi RS 7 (17 MPG) costs about $3,485 a year to fuel and the 2018 Cadillac CTS-V (17 MPG) about $3,485.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Audi RS 7
- Cadillac CTS-V
Side by side
| Audi RS 7 | Cadillac CTS-V | |
|---|---|---|
| $3,485 | Your annual fuel cost | $3,485 |
| 17 MPG | Combined efficiency | 17 MPG |
| 14 MPG | City | 14 MPG |
| 24 MPG | Highway | 21 MPG |
| 94 cu ft | Passenger volume | 97 cu ft |
| 25 cu ft | Cargo volume | 13 cu ft |
| 512 g/mi | Tailpipe CO₂ (g/mi) | 530 g/mi |
| 3/10 | EPA fuel economy score | 3/10 |
| 3/10 | EPA greenhouse gas score | 3/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 6.2L 8-cyl supercharged |
| 8-speed automatic | Transmission | 8-speed automatic |
| AWD | 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.
Audi RS 7 vs Cadillac CTS-V across model years
- Audi RS 7
- Cadillac CTS-V
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 Cadillac CTS-V has more passenger space (97 vs. 94 cu ft); the Audi RS 7 has more cargo space (25 vs. 13 cu ft).
Among 74 2018 midsize cars, the Audi RS 7 ranks 69th and the Cadillac CTS-V 70th for lowest fuel cost.
Frequently asked questions
How much does it cost to fuel the 2018 Audi RS 7 vs. the Cadillac CTS-V per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,485 for the Audi RS 7 and $3,485 for the Cadillac CTS-V.
Which has more cargo space?
The Audi RS 7, with 25 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
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