GMC Acadia vs Subaru Crosstrek: Specs Compared

Also searched as Subaru Crosstrek vs GMC Acadia specs — both orientations show this same side-by-side comparison.

The Subaru Crosstrek is the more efficient of the two: it reaches 36 mpg combined versus 25 mpg for the GMC Acadia, a 11 mpg advantage and costs about $750 less per year to fuel.

Across 5 measured categories, the Subaru Crosstrek leads in 5. Figures are EPA test data, not manufacturer claims.

2015–2027

GMC Acadia

Standard Sport Utility Vehicle 2WD · 44 configurations

25mpg combined (best)
All GMC Acadia specs

2015–2026

Subaru Crosstrek

Small Sport Utility Vehicle 4WD · 36 configurations

36mpg combined (best)
All Subaru Crosstrek specs

Head-to-head specifications

MetricGMC AcadiaSubaru Crosstrek
Best combined MPG25 mpg36 mpg ✓
Best city MPG22 mpg36 mpg ✓
Best highway MPG29 mpg36 mpg ✓
Lowest annual fuel costEPA estimate at 15,000 miles per year$2,450$1,700 ✓
Lowest CO2 output349 g/mi151 g/mi ✓
Engines offeredSIDISIDI; Hybrid, SIDI, SIDI; PHEV, 2.0
TransmissionsAutomatic 8-spd, Automatic 9-spd, Automatic 6-spdAutomatic (AV-S6), Automatic (AV-S8), Manual 6-spd
DrivetrainsAll-Wheel Drive, Front-Wheel DriveAll-Wheel Drive
Fuel typesRegularRegular, Regular Gas and Electricity
EPA classStandard Sport Utility Vehicle 2WDSmall Sport Utility Vehicle 4WD
Years covered2015–20272015–2026
Configurations on record4436

Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.

GMC Acadia vs Subaru Crosstrek dimensions and size

The GMC Acadia is 27.6 inches longer than the Subaru Crosstrek on a wheelbase 15.7 inches longer, and 1,216.9 lbs heavier. At over 200 inches, the larger of the two is past the comfortable limit of a standard 192-inch single garage bay once you allow walking room.

GMC Acadia versus Subaru Crosstrek exterior dimensions
DimensionGMC Acadia (2026)Subaru Crosstrek (2026)Difference
Length203.9 in176.4 in27.6 in
Width (excl. mirrors)79.5 in70.9 in8.7 in
Height70.9 in63 in7.9 in
Wheelbase120.9 in105.1 in15.7 in
Curb weight4,502 lbs3,285 lbs1,217 lbs

Width excludes mirrors; add 8–12 inches for mirrors out. Figures are for the newest model year on record for each vehicle. See both drawn to scale.

GMC Acadia vs Subaru Crosstrek: what the numbers mean

Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Subaru Crosstrek burns about $1,700 of fuel annually against $2,450 for the GMC Acadia. That $750 yearly gap compounds to roughly $3,750 over five years and $6,000 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.

City and highway economy: the Subaru Crosstrek leads in both cycles — 36 mpg city and 36 mpg highway against 22 and 29 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.

Powertrain choice: the GMC Acadia is recorded with 1 distinct engine configuration (SIDI), the Subaru Crosstrek with 4 (SIDI; Hybrid, SIDI, SIDI; PHEV). Across 44 recorded GMC Acadia configurations and 36 for the Subaru Crosstrek, the wider the engine spread the more the real-world fuel efficiency depends on which version you actually buy, so check the specific model year and drivetrain rather than the headline number.

Drivetrain and class: the GMC Acadia is offered with All-Wheel Drive, Front-Wheel Drive, the Subaru Crosstrek with All-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Standard Sport Utility Vehicle 2WD and Small Sport Utility Vehicle 4WD respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.

Tailpipe emissions: at their cleanest configurations the Subaru Crosstrek emits 151 g/mile of CO2 versus 349 g/mile for the GMC Acadia. Emissions track fuel consumption almost exactly, so the cleaner vehicle here is also the cheaper one to fuel.

Acadia vs Crosstrek: common questions

Which is better on gas, the GMC Acadia or the Subaru Crosstrek?

The Subaru Crosstrek is the more efficient of the two: it reaches 36 mpg combined versus 25 mpg for the GMC Acadia, a 11 mpg advantage and costs about $750 less per year to fuel.

Which costs less to run per year?

By EPA estimates at 15,000 miles a year, the Subaru Crosstrek runs about $1,700 a year in fuel at its most efficient configuration, versus about $2,450 for the GMC Acadia — a difference of roughly $750 per year.

What engines do the Acadia and Crosstrek offer?

GMC Acadia: SIDI. Subaru Crosstrek: SIDI; Hybrid, SIDI, SIDI; PHEV, 2.0.

Are they in the same vehicle class?

The EPA classifies the GMC Acadia as Standard Sport Utility Vehicle 2WD and the Subaru Crosstrek as Small Sport Utility Vehicle 4WD, so they aren't a like-for-like match on size.

More Acadia comparisons

More Crosstrek comparisons

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