3 ms·Wouldn't putting them in the wheel increase unsprung mass, which would degrade the feel of the car?by pfdietz 5mo agoWouldn't putting them in the wheel increase unsprung mass, which would degrade the feel of the car?rswail 5mo agoI think he was talking about small engines the size/weight of existing disk brake assemblies. So either no change or weight reduction.pfdietz 5mo agoWon't mechanical brakes still be needed? Regenerative braking only goes so far, and needs a backup.