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
You aren't driving it well enough, or you aren't driving in a place where that speed can be reached.
it will just be driving at a steady speed where two opposite forces are equal andbalanced
A rattle, or rattles.
Borrow your mama's car for the driving test.
while driving yur car reduces speed then pulls off with speed and backfires what can cause that
you crash
Because it is very high-speed car and it does not require the specified option. It is created for dynamic driving and is not a sedan.