basically its like drving a tin can. very purpose built obviously.
if he doesn't realize that he shouldn't drive a wrangler. he is coming from a bmw made car, quiet and quick. so he needs to know he is drving a loud, slow, gas guzzling turd. water leaks should be expected. about 15 mpgs max. tire noise rough ride etc.
but they are fun.
and he should NEVER leave anything valuable in it. it doesn't matter if it has an alarm or not or if he locks the doors etc.