If he has no car now, any quality, safe sedan should do. You’ll feel better buying him a car with a very good safety record regardless of what he “wants”.
We had neighbors who rewarded their children with the use of vehicles of their choice for their good conduct. One died in a Corvette crash traveling at over 100 mph, the other in a motorcycle accident, both were under 21 at the time of each. The accidents were three years apart. No one said the sad ending for both had anything to do with their vehicle choices, but you can’t convince the parents of that now.
You do well to ask the right questions…now listen to the suggestions and make a choice you and not your son can feel good with.
I would recommend that the car be kept in your name as a “loaner” and you reserve the right to take the car back at any time. Free rights to a car are relinquished IMO when some one else pays for the car and supports you for college.