Fuck a Prius. Fuck renting a truck. Buy your own truck and rent it out to others, if you live in an area full of chumps who rent trucks. A Prius is a liability, but a good truck is an asset. Diesel is nice but gasoline isn't going anywhere, and small trucks get pretty good mileage. $2k will buy one hell of a used Ford Ranger or S10 or Tacoma and you can spend the rest on your boat or whatever, instead of flushing it down the drain on a Prius.