The laws here are as is the buyer can have the car inspected before purchase by a qualified shop at his expense. If he procedes to purchase it then he is accepting it as-is no turning back.
I disagree with that statement. A co-worker sold a 140K miled Porsche 944 for $4000 as is. Even his signed receipt said as is. The buyer was shady with a lawyer buddy and it went to a jury trial. In Michigan there is no such thing as "as is" per the Judge that made my co-worker give $3000 back to the buyer.