What are the best places for Car Hire for California?

I am travelling to California this October and will be driving around for two weeks. I am looking to pick the car up and drop off at San Francisco airport. Ideally I want a Ford Mustang Convertible or something similar (not a Sebring). Can anyone suggest the best place or website to rent for the best prices?

Public Comments

1. The only U.S national rental (hire) chains offering the Ford Mustang convertible are; Dollar, Thrifty, and Budget. The U.S rate at SFO in October for a two week rental(hire) is in the area of $1860.00 including taxes. You may get a lower rate booking through a European travel agent.
2. try the following http://www.carhire3000.com/ we use them every time we travel to the USA