It is comin in forrin cars when they get old and if your car is doing that it means that you should probaly take it to be looked at!
could be failing transmission
It sounds like the timing is set too high and needs to be lowered...
The car rattles when I go fast in it.
yes. No! Danger to stop in a wall or some car, cause it killing you, but not fast driving.
no
it will just be driving at a steady speed where two opposite forces are equal andbalanced
You aren't driving it well enough, or you aren't driving in a place where that speed can be reached.
A rattle, or rattles.
Borrow your mama's car for the driving test.
you crash
while driving yur car reduces speed then pulls off with speed and backfires what can cause that
depends on what speed your driving, the traffic and if your car can fly or not.