The Mach-E’s headline is 320 miles of EPA range, which sounds excellent until you notice it takes 91 kWh of usable battery to get there. At 31 kWh per 100 miles it is materially less efficient than the Tesla Model Y, which manages 327 EPA miles from 75 kWh.
Why efficiency is not just an environmental point
A bigger battery costs more to buy, more to insure, more to replace out of warranty and more to charge for the same distance. Enter both cars into the running-cost calculator at the same mileage and the gap in annual energy cost is real money, not a rounding error — and it compounds every year you own the car.
One car, two packs: read the market labels
Ford sells two different Extended Range packs under this name. The North American car carries 91 kWh usable and is rated at 320 miles by the EPA. The European car carries 88 kWh and is rated at 615 km WLTP. They are not the same specification, and converting one figure into the other would produce a number that describes neither car.
So the source note under every figure in the table below names the market it came from. The EPA range, the NHTSA rating and the recall record are the North American car; the WLTP range, the observed real-world figure, the consumption, the power, the torque and the European prices are from EV Database’s listing of the European car. Check the credit line before comparing a number here against one you read somewhere else.
The NACS change
From 2026 the Mach-E ships with a native NACS port rather than CCS with an adapter. For a US buyer this is arguably the most consequential change of the model year: it turns the largest and most reliable fast-charging network in the country into a first-class option rather than a workaround.
Roughly thirty-two minutes from 10 to 80 percent is mid-table, and the 10.5 kW onboard charger is slightly better than the 11 kW class norm suggests once you account for how US home circuits are wired.
Charging time and running cost for the Ford Mustang Mach-E Extended Range RWD are worked out in full on its own page. It works the numbers through at every charger power, with the tariff and efficiency assumptions printed rather than assumed: Ford Mustang Mach-E charging time and cost.
Frequently asked questions
How far does the Ford Mustang Mach-E Extended Range RWD really go on a charge?
The Ford Mustang Mach-E Extended Range RWD covers about 475 km in independently observed mixed driving, 615 km on the WLTP cycle, 320 miles on the EPA cycle. That observed figure is about 77 per cent of the WLTP claim — a shortfall is normal for every electric car, and what matters is that this one is predictable rather than that it exists. We rank the size of that gap across the database on claimed vs real range.
How long does the Ford Mustang Mach-E Extended Range RWD take to charge?
From 10 to 80 per cent on a DC rapid charger it takes about 32 minutes, peaking at 150 kW. That is at the slower end of the 18 cars we hold charging data for — worth weighing if you drive long distances often. On AC at home it accepts up to 10.5 kW. The peak figure on its own tells you very little — this ranking explains why the window is the honest measure.
How long will the Ford Mustang Mach-E Extended Range RWD’s battery last?
The battery is warranted for 8 years or 100,000 miles, with replacement if capacity falls below 70 per cent. Our projection puts it at roughly 78.4 per cent of original capacity after eight years. That is an estimate, not a measurement: nobody publishes per-model degradation data, so it applies the published rate for this vehicle class and is labelled as an estimate everywhere it appears. The reasoning is set out in full on the methodology page, and we compare warranty terms across the database on best EV battery warranties.
Who should buy the Ford Mustang Mach-E Extended Range RWD?
On our data it is one of the biggest batteries in the database at 91 kWh usable. Against that, it is one of the slower cars to rapid charge at 32 minutes. Whether that suits you depends on how much of your charging happens at home and how often you drive beyond one charge — the running cost calculator takes your own mileage and tariff, and the comparison tool puts this car next to any other in the database.