I've foolishly used rentalcars.com twice. First time in Italy I ordered a audi a3 and they substituted the worst thing ever made a jeep renagade.
Second time in kauai and they gave me some conformation number budget says does not exist. Now that all the cars are sold out I'm left with a nonexistent reservation for 18 days. These people are horrible, do not risk your trip on them. Every time I call they end up putting me on hold then after 20 minutes disconnect. They are really horrible.