2019 head-to-head · Midsize Car

2019 Audi A6 Hybrid vs Cadillac CTS

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$2,194/ year to fuel
27 MPG
✓ Cheaper to run
$2,022/ year to fuel
23 MPG

The 2019 Cadillac CTS is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and $3.10/gal regular gas, it costs about $2,022 a year to fuel (23 MPG), versus $2,194 for the 2019 Audi A6 Hybrid (27 MPG). That's roughly $173 a year, or about $864 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 A6 Hybrid
  • Cadillac CTS

Side by side

Audi A6 HybridCadillac CTS
$2,194 Your annual fuel cost $2,022
27 MPG Combined efficiency 23 MPG
24 MPG City 19 MPG
32 MPG Highway 29 MPG
99 cu ft Passenger volume 97 cu ft
14 cu ft Cargo volume 13 cu ft
329 g/mi Tailpipe CO₂ (g/mi) 396 g/mi
6/10 EPA fuel economy score 5/10
6/10 EPA greenhouse gas score 5/10
Hybrid Powertrain Gas
Premium gasoline Fuel Regular gasoline
2.0L 4-cyl turbo Engine / motor 3.6L 6-cyl
7-speed dual-clutch 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 A6 Hybrid vs Cadillac CTS across model years

  • Audi A6 Hybrid
  • Cadillac CTS

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 A6 Hybrid has more cargo space (14 vs. 13 cu ft).

Among 68 2019 midsize cars, the Audi A6 Hybrid ranks 52nd and the Cadillac CTS 43rd for lowest fuel cost.

The powertrains differ: the Audi A6 Hybrid is a full hybrid, while the Cadillac CTS is a conventional gas model.

Frequently asked questions

Which is more fuel-efficient, the 2019 Audi A6 Hybrid or the 2019 Cadillac CTS?

Measured by cost to drive, the Cadillac CTS. The Audi A6 Hybrid is rated 27 MPG combined and the Cadillac CTS 23 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2019 Audi A6 Hybrid vs. the Cadillac CTS per year?

At 15,000 miles a year with $3.95/gal premium gas and $3.10/gal regular gas, about $2,194 for the Audi A6 Hybrid and $2,022 for the Cadillac CTS.

Which has more cargo space?

The Audi A6 Hybrid, with 14 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

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