2026 BMW i4 M60 xDrive Gran Coupe (20 inch Wheels): home charging cost in Montana

In Montana, home electricity runs 13.77¢/kWh — put a 2026 BMW i4 M60 xDrive Gran Coupe (20 inch Wheels)'s EPA-rated 41.4 kWh/100mi against that and 100 miles costs $5.71, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 64.4% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 BMW i4 M60 xDrive Gran Coupe (20 inch Wheels) charged at home in Montana costs about $856/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,547 a year.

Cost of a full charge

A 2026 BMW i4 M60 xDrive Gran Coupe (20 inch Wheels) needs roughly 96.1 kWh to reach its EPA-rated 232-mile range, which runs about $13.24 at 13.77¢/kWh in Montana.

2026 BMW i4 M60 xDrive Gran Coupe (20 inch Wheels) in Montana, ranked

This combination ranks 8,006 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i4 M60 xDrive Gran Coupe (20 inch Wheels) alone ranks 288 of 400 models for efficiency; Montana alone ranks 10 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Ask a licensed Montana electrician to quote the install before this math becomes a real decision.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Montana's 13.77¢/kWh rate ranks 10 of 51 states; the state rate guide lays out the full spread.