How to apply a turbo boost to an object ?

Hello.
I’m working on a simple racing game.
I’m having some problems, hope you can help me

  1. Along the track, i would like to place some classic “bonus”. How to detect collision without applying rigidbody and physics to avoid my car crash into the bonus , but simply getting the bonus , then apply the bonus (a turbo boost), finally destroy the bonus ?

  2. Regarding boost, what’s the way to apply it. Suppose my car is going at a X velocity, how can i apply a boost ? Something like

rb.addforce( velocity_normalized * X speedfactor, ForceMode.Impulse) ?

But it dont’ works, but maybe because at the moment, the collision is stopping the car ?

Thanks

rb.addforce(X force, Y force, Z force) should work