i would highly recommend NOT doing that.
first off, you have to switch just right for the car to switch gears. that's how D3 and D4 work. 1 and 2 are not supposed to be used when going fast or driving hard. 1 is used for heavy traffic (i think, i dont know i have a 97) and 2 is for ice/snow/wet roads.
tell your friend (or maybe yourself) that's NOT GOOD.
one day, this 'friend' will be driving down the road, and try to be cool and shift. then his transmission will fall out from under the car
