2023 head-to-head · Compact Car
2023 BMW 5 Series Plug-in Hybrid vs Cadillac CT4
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 2023 BMW 5 Series Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $1,826 a year to fuel (64 MPGe + 26 MPG), versus $2,194 for the 2023 Cadillac CT4 (27 MPG). That's roughly $369 a year, or about $1,843 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 5 Series Plug-in Hybrid
- Cadillac CT4
Side by side
| BMW 5 Series Plug-in Hybrid | Cadillac CT4 | |
|---|---|---|
| $1,826 | Your annual fuel cost | $2,194 |
| 64 MPGe + 26 MPG | Combined efficiency | 27 MPG |
| 59 MPGe / 24 MPG | City | 23 MPG |
| 72 MPGe / 29 MPG | Highway | 34 MPG |
| 49 kWh | Electricity use (kWh/100 mi) | — |
| 340 mi | Driving range | — |
| 21 mi | All-electric range | — |
| 99 cu ft | Passenger volume | 90 cu ft |
| 10 cu ft | Cargo volume | 11 cu ft |
| 178 g/mi | Tailpipe CO₂ (g/mi) | 331 g/mi |
| 7/10 | EPA fuel economy score | 5/10 |
| 8/10 | EPA greenhouse gas score | 5/10 |
| 3 hrs | Charge time at 240V | — |
| Plug-in hybrid | Powertrain | Gas |
| Premium gas + electricity | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 2.0L 4-cyl turbo |
| 8-speed automatic | Transmission | 8-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 5 Series Plug-in Hybrid vs Cadillac CT4 across model years
- BMW 5 Series Plug-in Hybrid
- Cadillac CT4
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 5 Series Plug-in Hybrid has more passenger space (99 vs. 90 cu ft); the Cadillac CT4 has more cargo space (11 vs. 10 cu ft).
Among 31 2023 compact cars, the BMW 5 Series Plug-in Hybrid ranks 14th and the Cadillac CT4 21st for lowest fuel cost.
The powertrains differ: the BMW 5 Series Plug-in Hybrid is a plug-in hybrid, while the Cadillac CT4 is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2023 BMW 5 Series Plug-in Hybrid or the 2023 Cadillac CT4?
Measured by cost to drive, the BMW 5 Series Plug-in Hybrid. The BMW 5 Series Plug-in Hybrid is rated 64 MPGe + 26 MPG combined and the Cadillac CT4 27 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 BMW 5 Series Plug-in Hybrid vs. the Cadillac CT4 per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $1,826 for the BMW 5 Series Plug-in Hybrid and $2,194 for the Cadillac CT4.
Which has more cargo space?
The Cadillac CT4, with 11 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
BMW 5 Series Plug-in Hybrid vs Cadillac CT4 in other years
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