Can you do part time job in the Nascar as a driver & work in another place full time?

Interested to find out how a supercharger works and how much they would cost on average.
If it helps, its for a 1995 VW Golf 8v 2.0 GTi.

Im planning to buy a used bmw. The kbb is marked as 28000 to 30000. I saw one for around 28000 at dealship, what the bottom line could be? Is it possible to get it for 26000 out of door?

My 3 series has an intermittent wiper problem and I have been told to go to bmw so they can plug into the ecu and diagnose the fault…
So I dont get ripped off can anyone tell me roughly what is a fair price for simply diagnosing the fault please?

My daughter backed my car into a curb which bent the pipe to the muffler where it joins the muffler. It rumbles, rattles and is sucking the life from my car. How do you fix it? How much would it cost?