Personally, I wouldn't... Although newer cars shouldn't have a problem being a rental per se, but just the fact that it was a rental does make me a bit uneasy with how cars have been maintained and driven by its hundreds, if not thousands, of drivers. Also, the value is significantly lower than privately owned or leased cars, so when you decide to resell the car, you will get less money usually, and you will lose potential buyers just because it was branded as a rental... However, I will say I do know some people who only buys former rentals and have no troubles, but just giving my 2 cents on the topic