Does anyone know of a car rental company that will rent to an 18 year old? The closest I've found is Budget. They'll rent to a 21 year old, but that's it. Avis and Hertz won't. They're like everyone else who only rents to 25 or older. A kid at school last year got a rental car at 18 because his car was in the shop and the person who hit him had to pay for the rental Cavalier. But I dont' know where he got his car. But it was destroyed when he returned it.