From Park to Drive? Automatic then? My G1 does this, my G2 does it slightly, not as much. Not sure if it's normal, almost all automatic cars I've had a chance to drive do this... some people say Tranny Mount... take all my ideas with a grain of salt, I've been driving under 2 years. heh
It's probably the rear tranny mount. I think that it's like $80 for the replacement piece. The rubber probably wore away. It's a normal problem actually. But don't take my word for it, you'll need to check it out if it's real bad, or just look yourself if you have a means of getting to a lift.