2020 head-to-head · Midsize Car
2020 Audi S6 Hybrid vs Cadillac CT5
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 · 2.9L 6-cyl turbo · 8-speed automatic · 22 MPG
The 2020 Cadillac CT5 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,279 a year to fuel (26 MPG), versus $2,693 for the 2020 Audi S6 Hybrid (22 MPG). That's roughly $414 a year, or about $2,072 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
- Audi S6 Hybrid
- Cadillac CT5
Side by side
| Audi S6 Hybrid | Cadillac CT5 | |
|---|---|---|
| $2,693 | Your annual fuel cost | $2,279 |
| 22 MPG | Combined efficiency | 26 MPG |
| 18 MPG | City | 23 MPG |
| 28 MPG | Highway | 32 MPG |
| 98 cu ft | Passenger volume | 99 cu ft |
| 16 cu ft | Cargo volume | 13 cu ft |
| 410 g/mi | Tailpipe CO₂ (g/mi) | 337 g/mi |
| 4/10 | EPA fuel economy score | 5/10 |
| 4/10 | EPA greenhouse gas score | 5/10 |
| Hybrid | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.9L 6-cyl turbo | Engine / motor | 2.0L 4-cyl turbo |
| 8-speed automatic | Transmission | 10-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 S6 Hybrid vs Cadillac CT5 across model years
- Audi S6 Hybrid
- Cadillac CT5
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 Audi S6 Hybrid has more cargo space (16 vs. 13 cu ft).
Among 64 2020 midsize cars, the Audi S6 Hybrid ranks 58th and the Cadillac CT5 49th for lowest fuel cost.
The powertrains differ: the Audi S6 Hybrid is a full hybrid, while the Cadillac CT5 is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2020 Audi S6 Hybrid or the 2020 Cadillac CT5?
Measured by cost to drive, the Cadillac CT5. The Audi S6 Hybrid is rated 22 MPG combined and the Cadillac CT5 26 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 Audi S6 Hybrid vs. the Cadillac CT5 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,693 for the Audi S6 Hybrid and $2,279 for the Cadillac CT5.
Which has more cargo space?
The Audi S6 Hybrid, with 16 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
Audi S6 Hybrid vs Cadillac CT5 in other years
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