hey ron300r, were you really born stupid or did your mom(if you even know who she is) drop you on your head?
you will see smoke come out of the back of a car when it is cold outside, when you get on the throttle on a car that hasnt been opened up in awhile, if your running no cats,etc. doesnt mean anything is wrong with the car. many people change their exhausts to get a popping backfiring sound.
on my lotus, it pops, backfires and then shoots two big flames out the exhaust, i like that alot.
that is my white car, and if it makes you feel better at night that i need a tow truck for it, then good for you, but trust me, i trust it just as much to go cross country as do my nsx. dont get me wrong though, if it were unreliable and did break down, i like it enough to buy another, to have one constantly on hand, i'd just sell the nsx, and have 2 diablos.