2019 head-to-head · Large Car
2019 BMW 7 Series vs Cadillac CT6
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 2019 Cadillac CT6 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,116 a year to fuel (28 MPG), versus $2,469 for the 2019 BMW 7 Series (24 MPG). That's roughly $353 a year, or about $1,763 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 7 Series
- Cadillac CT6
Side by side
| BMW 7 Series | Cadillac CT6 | |
|---|---|---|
| $2,469 | Your annual fuel cost | $2,116 |
| 24 MPG | Combined efficiency | 28 MPG |
| 21 MPG | City | 24 MPG |
| 29 MPG | Highway | 34 MPG |
| 114 cu ft | Passenger volume | 110 cu ft |
| 14 cu ft | Cargo volume | 15 cu ft |
| 371 g/mi | Tailpipe CO₂ (g/mi) | 317 g/mi |
| 5/10 | EPA fuel economy score | 6/10 |
| 5/10 | EPA greenhouse gas score | 6/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 2.0L 4-cyl turbo |
| 8-speed automatic | Transmission | 10-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 7 Series vs Cadillac CT6 across model years
- BMW 7 Series
- Cadillac CT6
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 BMW 7 Series has more passenger space (114 vs. 110 cu ft); the Cadillac CT6 has more cargo space (15 vs. 14 cu ft).
Among 30 2019 large cars, the BMW 7 Series ranks 21st and the Cadillac CT6 14th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2019 BMW 7 Series or the 2019 Cadillac CT6?
Measured by cost to drive, the Cadillac CT6. The BMW 7 Series is rated 24 MPG combined and the Cadillac CT6 28 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2019 BMW 7 Series vs. the Cadillac CT6 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the BMW 7 Series and $2,116 for the Cadillac CT6.
Which has more cargo space?
The Cadillac CT6, with 15 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
BMW 7 Series vs Cadillac CT6 in other years
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