It's similar to riding a fixed gear bike in my opinion (this means there is no coasting and you must pedal faster downhill). Then back-pedaling or skid stops make it able to stop (if you're a daredevil and don't have brakes). It's all about having more control over the vehicle and becoming one with it. Fixed gear bikes make it possible to do track stands (which is helpful at stoplights, you can keep the bike in one place without taking your foot out of the toe clip). For cars I think a manual (based on the times I've done it in my dad's Honda) would make driving a lot more enjoyable.