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Interestingly, brands like Mercedes do the opposite - a recent test by What Car? indicated that the real (UK) highway range of the GLC 400 4Matic Electric is just 1.4% lower than its WLTP rating - 390 miles vs 394.

I don't know about anyone else, but I always needed a short break after 450km or so. Those 390 miles are more than I would ever use without stopping to charge.

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Germans car manufacturers are known to underrate. Horsepower, MPG, even BMW speedometers are under by 2-3mph. At least customers are pleasantly surprised when it's better than advertised.

Those 390 miles are from 100 to empty and you don’t do that in real life.

Usually on long trip stops I charge to 75% because after that it becomes painfully slow to charge the rest of 25. And I rarely stop below 20%, because of, eh, low battery stress.

So in reality I have to stop at half of the advertised range.

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