I've been told by a couple people that it's really bad for a car to be shifted from Reverse to Drive while the car is still moving backwards. Is this true?
In my experience:
On automatic cars, this could be true - most cars I've tried this on (not often, mind you, since I don't want to destroy cars that aren't mine) jerk strongly when switched.
On manual cars, however, I've noticed the opposite; rather than a strong jerk, there feels like what I'd call a 'winding'-like sensation - the car slows down and then moves forward smoothly.
So, again, is this a bad thing to do? On all cars or just some? If just some, is it a make-and-model kind of thing, or an automatic/manual thing?