Assigning speed

Hola developer amigos,

lets say I have epik car okie
lets say I want to know if car is on a ramp okie
lets say i got that ramp part covered okie
lets say when car on ramp I want give me car speed okie
lets say i dont know how to do that okie

how do assign speed to car? I know how to find the speed of a car but how do I assign it is there a way? I want to assign the speed of the car before he hit the ramp. Now how do I assign it :woozy_face:

ive been trying to do this myself for too long

send help