2015 head-to-head · Compact Car

2015 BMW 3 Series Hybrid 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
$2,116/ year to fuel
28 MPG

RWD · 3.0L 6-cyl turbo · 8-speed automatic · 28 MPG

✓ Cheaper to run
$1,860/ year to fuel
25 MPG

The 2015 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 $1,860 a year to fuel (25 MPG), versus $2,116 for the 2015 BMW 3 Series Hybrid (28 MPG). That's roughly $256 a year, or about $1,280 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 3 Series Hybrid
  • Cadillac ATS

Side by side

BMW 3 Series HybridCadillac ATS
$2,116 Your annual fuel cost $1,860
28 MPG Combined efficiency 25 MPG
25 MPG City 21 MPG
32 MPG Highway 32 MPG
96 cu ft Passenger volume 91 cu ft
10 cu ft Cargo volume 10 cu ft
318 g/mi Tailpipe CO₂ (g/mi) 356 g/mi
7/10 EPA fuel economy score 6/10
7/10 EPA greenhouse gas score 6/10
Hybrid Powertrain Gas
Premium gasoline Fuel Regular gasoline
3.0L 6-cyl turbo Engine / motor 2.5L 4-cyl
8-speed automatic Transmission 6-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 3 Series Hybrid vs Cadillac ATS across model years

  • BMW 3 Series Hybrid
  • 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 BMW 3 Series Hybrid has more passenger space (96 vs. 91 cu ft).

Among 52 2015 compact cars, the BMW 3 Series Hybrid ranks 39th and the Cadillac ATS 32nd for lowest fuel cost.

The powertrains differ: the BMW 3 Series Hybrid is a full hybrid, while the Cadillac ATS is a conventional gas model.

Frequently asked questions

Which is more fuel-efficient, the 2015 BMW 3 Series Hybrid or the 2015 Cadillac ATS?

Measured by cost to drive, the Cadillac ATS. The BMW 3 Series Hybrid is rated 28 MPG combined and the Cadillac ATS 25 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 BMW 3 Series Hybrid 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 $2,116 for the BMW 3 Series Hybrid and $1,860 for the Cadillac ATS.

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