My Model Y gives two mileage estimates simultaneously - a ballooned EPA estimate and an accurate (typically within 1%!) estimate once I put in a destination. The latter is usually ~75% of the former.
At first this felt like typical marketing BS. But I also find my inner engineer defending it a bit - the range depends significantly on top speed and head/tail wind. If I slow down to 60 mph on the interstate I have exceeded the stated EPA mileage.
I get the confusion and frustration, but at the same time the claimed range is under ideal conditions, just like every other manufacturer. But because the Tesla is so much more energy efficient, deviations feel magnified.
It's why I switched my Model 3 to just report battery percentage instead of estimated range. Their charge usage algorithm in their route planner is very impressive. Even across 300+ km trips, I've never seen it out by more than a few percent. From what I can see, it's most affected by wind. I guess they don't input weather into the estimation model.
My experience is that real world usage gets me about 85% of the advertised range for most of the year. I average around 160 Wh/km for the driving I do, so with a pack capacity of 75 kWh, that's about 470 km. Advertised range here in the EU was 530 km.
At first this felt like typical marketing BS. But I also find my inner engineer defending it a bit - the range depends significantly on top speed and head/tail wind. If I slow down to 60 mph on the interstate I have exceeded the stated EPA mileage.
I get the confusion and frustration, but at the same time the claimed range is under ideal conditions, just like every other manufacturer. But because the Tesla is so much more energy efficient, deviations feel magnified.