2027 head-to-head · Midsize & Large SUV
2027 BMW iX3 vs Cadillac Optiq
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2027 BMW iX3 is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity, it costs about $772 a year to fuel (118 MPGe), versus $867 for the 2027 Cadillac Optiq (105 MPGe). That's roughly $94 a year, or about $472 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 iX3
- Cadillac Optiq
Side by side
| BMW iX3 | Cadillac Optiq | |
|---|---|---|
| $772 | Your annual fuel cost | $867 |
| 118 MPGe | Combined efficiency | 105 MPGe |
| 125 MPGe | City | 117 MPGe |
| 110 MPGe | Highway | 93 MPGe |
| 28.6 kWh | Electricity use (kWh/100 mi) | 32.1 kWh |
| 434 mi | Driving range | 317 mi |
| — | Passenger volume | 102 cu ft |
| — | Cargo volume | 26 cu ft |
| 0 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 9/10 | EPA fuel economy score | 9/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| 8 hrs | Charge time at 240V | 9.5 hrs |
| Electric | Powertrain | Electric |
| Electricity | Fuel | Electricity |
| Electric motors (363 kW) | Engine / motor | Electric motors (470 kW) |
| Single-speed | Transmission | Single-speed |
| 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 iX3 vs Cadillac Optiq across model years
- BMW iX3
- Cadillac Optiq
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
The BMW iX3 goes farther between stops: about 434 miles on a charge, compared with 317 miles for the Cadillac Optiq.
Among 58 2027 midsize & large SUVs, the BMW iX3 ranks 1st and the Cadillac Optiq 5th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2027 BMW iX3 or the 2027 Cadillac Optiq?
Measured by cost to drive, the BMW iX3. The BMW iX3 is rated 118 MPGe combined and the Cadillac Optiq 105 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 BMW iX3 vs. the Cadillac Optiq per year?
At 15,000 miles a year with 18¢/kWh electricity, about $772 for the BMW iX3 and $867 for the Cadillac Optiq.
Which has more range?
The BMW iX3: about 434 miles versus 317 miles.
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