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Libraio-
When we put our solar car up for road worthiness testing we had to pass the brake tests with regen disabled. Because regen braking doesn't work when the battery is full it cannot be relied upon for emergency braking.
Tijmen
Yes, far yoo many collisions, with other vehicles and street furniture caused by too much power under the right foot.
I'm also now wondering about braking distances.
Do VW, for example, fit the ID3 with an uprated set of disc brakes to account for that heavy slab of batteries under the floor, or just rely upon whatever is in their parts bin?