2021 head-to-head · Small SUV
2021 BMW X3 Plug-in Hybrid vs Cadillac XT6
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 2.0L 4-cyl turbo · 8-speed automatic · 60 MPGe + 24 MPG
The 2021 BMW X3 Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity, $3.95/gal premium gas and $3.10/gal regular gas, it costs about $2,064 a year to fuel (60 MPGe + 24 MPG), versus $2,214 for the 2021 Cadillac XT6 (21 MPG). That's roughly $150 a year, or about $751 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 Plug-in Hybrid
- Cadillac XT6
Side by side
| BMW X3 Plug-in Hybrid | Cadillac XT6 | |
|---|---|---|
| $2,064 | Your annual fuel cost | $2,214 |
| 60 MPGe + 24 MPG | Combined efficiency | 21 MPG |
| 59 MPGe / 21 MPG | City | 19 MPG |
| 61 MPGe / 27 MPG | Highway | 26 MPG |
| 56 kWh | Electricity use (kWh/100 mi) | — |
| 340 mi | Driving range | — |
| 18 mi | All-electric range | — |
| 204 g/mi | Tailpipe CO₂ (g/mi) | 418 g/mi |
| 7/10 | EPA fuel economy score | 4/10 |
| 9/10 | EPA greenhouse gas score | 4/10 |
| 3 hrs | Charge time at 240V | — |
| Plug-in hybrid | Powertrain | Gas |
| Premium gas + electricity | Fuel | Regular gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 3.6L 6-cyl |
| 8-speed automatic | Transmission | 9-speed automatic |
| AWD | Drivetrain | FWD |
✓ 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 Plug-in Hybrid vs Cadillac XT6 across model years
- BMW X3 Plug-in Hybrid
- Cadillac XT6
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 92 2021 small SUVs, the BMW X3 Plug-in Hybrid ranks 61st and the Cadillac XT6 70th for lowest fuel cost.
The powertrains differ: the BMW X3 Plug-in Hybrid is a plug-in hybrid, while the Cadillac XT6 is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2021 BMW X3 Plug-in Hybrid or the 2021 Cadillac XT6?
Measured by cost to drive, the BMW X3 Plug-in Hybrid. The BMW X3 Plug-in Hybrid is rated 60 MPGe + 24 MPG combined and the Cadillac XT6 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 BMW X3 Plug-in Hybrid vs. the Cadillac XT6 per year?
At 15,000 miles a year with 18¢/kWh electricity, $3.95/gal premium gas and $3.10/gal regular gas, about $2,064 for the BMW X3 Plug-in Hybrid and $2,214 for the Cadillac XT6.
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