2017 head-to-head · Compact Car

2017 Audi A4 vs Cadillac ATS

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
$1,911/ year to fuel
31 MPG
✓ Cheaper to run
$1,788/ year to fuel
26 MPG

The 2017 Cadillac ATS 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 $1,788 a year to fuel (26 MPG), versus $1,911 for the 2017 Audi A4 (31 MPG). That's roughly $123 a year, or about $614 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 A4
  • Cadillac ATS

Side by side

Audi A4Cadillac ATS
$1,911 Your annual fuel cost $1,788
31 MPG Combined efficiency 26 MPG
27 MPG City 22 MPG
37 MPG Highway 32 MPG
92 cu ft Passenger volume 91 cu ft
13 cu ft Cargo volume 10 cu ft
284 g/mi Tailpipe CO₂ (g/mi) 347 g/mi
7/10 EPA fuel economy score 6/10
7/10 EPA greenhouse gas score 6/10
Gas Powertrain Gas
Premium gasoline Fuel Regular gasoline
2.0L 4-cyl turbo Engine / motor 2.5L 4-cyl
7-speed dual-clutch Transmission 8-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.

Audi A4 vs Cadillac ATS across model years

  • Audi A4
  • Cadillac ATS

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 A4 has more cargo space (13 vs. 10 cu ft).

Among 50 2017 compact cars, the Audi A4 ranks 30th and the Cadillac ATS 28th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2017 Audi A4 or the 2017 Cadillac ATS?

Measured by cost to drive, the Cadillac ATS. The Audi A4 is rated 31 MPG combined and the Cadillac ATS 26 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2017 Audi A4 vs. the Cadillac ATS per year?

At 15,000 miles a year with $3.95/gal premium gas and $3.10/gal regular gas, about $1,911 for the Audi A4 and $1,788 for the Cadillac ATS.

Which has more cargo space?

The Audi A4, with 13 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).

Audi A4 vs Cadillac ATS in other years

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