What it costs to charge a 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) in South Carolina

A 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) draws 45.1 kWh per 100 miles per the EPA; at South Carolina's 16.04¢/kWh residential rate that's $7.23 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 54.9% cheaper per mile than gasoline in South Carolina — charging at home is much cheaper than gas here.

2026 BMW i7 M70 xDrive Sedan (20 inch Wheels): yearly cost in South Carolina

Home charging this 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) in South Carolina runs about $1,084 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,319 saved annually, at this mileage.

Cost of a full charge

$19.3 — that's what South Carolina's 16.04¢/kWh rate puts on the 120.3 kWh a 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) needs for its full 267-mile EPA range.

2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) in South Carolina, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) in South Carolina ranks 13,650 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 M70 xDrive Sedan (20 inch Wheels) ranks 360 of 400 EV models for raw efficiency, and South Carolina ranks 27 of 51 for cheapest residential electricity.

Next step: home charger installation

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Line up a few South Carolina electrician quotes for Level 2 install before you commit either way.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how South Carolina's 16.04¢/kWh compares? The guide to charging cost by state ranks every state side by side.