Would you?

Tape hot wheels to your fist and then punch them in the face.

Yes, and then bitch can hit me with her car and we're 10million richer

It says hit not run over.
Just lightly tap them with the car and
BAM! You're rich...

If your best friend isn't down for this are they truly your best friend.

If it said would you deliberately drive a car into your unprepared friend at 100 mph and then slam on the reverse to finish them off, it would make more sense. As it is now it's too vague to get a good result.

Never said how fast the car had to go.

"Hey Jim, do you want to make 2.5 million dollars?"

if its like the 'best friends' of this century, he'd prolly let you do it, but you'd have to split the money.