2026 head-to-head · Small SUV

2026 BMW X3 Hybrid vs Mercedes-Benz GLC-Class Hybrid

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
$2,043/ year to fuel
29 MPG
✓ Cheaper to run
$2,194/ year to fuel
27 MPG

The 2026 BMW X3 Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,043 a year to fuel (29 MPG), versus $2,194 for the 2026 Mercedes-Benz GLC-Class Hybrid (27 MPG). That's roughly $151 a year, or about $757 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 X3 Hybrid
  • Mercedes-Benz GLC-Class Hybrid

Side by side

BMW X3 HybridMercedes-Benz GLC-Class Hybrid
$2,043 Your annual fuel cost $2,194
29 MPG Combined efficiency 27 MPG
27 MPG City 24 MPG
33 MPG Highway 32 MPG
299 g/mi Tailpipe CO₂ (g/mi) 323 g/mi
6/10 EPA fuel economy score 5/10
6/10 EPA greenhouse gas score 5/10
Hybrid Powertrain Hybrid
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
8-speed automatic Transmission 9-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.

BMW X3 Hybrid vs Mercedes-Benz GLC-Class Hybrid across model years

  • BMW X3 Hybrid
  • Mercedes-Benz GLC-Class Hybrid

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

Among 114 2026 small SUVs, the BMW X3 Hybrid ranks 86th and the Mercedes-Benz GLC-Class Hybrid 93rd for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2026 BMW X3 Hybrid or the 2026 Mercedes-Benz GLC-Class Hybrid?

Measured by cost to drive, the BMW X3 Hybrid. The BMW X3 Hybrid is rated 29 MPG combined and the Mercedes-Benz GLC-Class Hybrid 27 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2026 BMW X3 Hybrid vs. the Mercedes-Benz GLC-Class Hybrid per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,043 for the BMW X3 Hybrid and $2,194 for the Mercedes-Benz GLC-Class Hybrid.

BMW X3 Hybrid vs Mercedes-Benz GLC-Class Hybrid in other years

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