My Hyundai dealer washes my car when they're done with it. But loaners are hard to come by. Lexus always had lots of loaners, but I think I'd still be paying less for service at Hyundai if I rented a car each time 

Also, Lexus is basically a Camry in heavy makeup. Genesis is its own thing.If we wanted to pay Lexus prices, we would have bought Lexi.