Charging a 2027 Audi A6 e-tron quattro ultra at home in Massachusetts

At Massachusetts's residential electricity rate of 30.06¢/kWh, a 2027 Audi A6 e-tron quattro ultra (rated 28.7 kWh per 100 miles by the EPA) costs $8.64 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 46.1% cheaper per mile than gasoline in Massachusetts — charging at home is much cheaper than gas here.

What a year of driving costs

Massachusetts owners putting 15,000 annual miles on a 2027 Audi A6 e-tron quattro ultra spend about $1,296 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,107 saved annually, at this mileage.

Cost of a full charge

At Massachusetts's rate, fully covering this 2027 Audi A6 e-tron quattro ultra's 360-mile EPA range costs about $31.11 (103.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Audi A6 e-tron quattro ultra in Massachusetts ranks 15,940 for cost savings versus gas — 1 being the best deal nationally. Separately, the Audi A6 e-tron quattro ultra ranks 33 of 400 EV models for raw efficiency, and Massachusetts ranks 49 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 Massachusetts electrician quotes for Level 2 install before you commit either way.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Massachusetts has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.