Ok..i went to CA for a night last week to buy the car, and believe it or not..i did not drive it, i was waiting till it get here in Minnesota. I let the seller drove me around. When the car started, for few seconds only, it did shake a little bit. Well, I have never been in an NSX before, and that was my first time. So, it probably was just my feeling or something. It is a 95 NSX-T with 36k miles on it. It looks great except rock chips on front. Thank you again.