Did you try a dealer? Few would hand the keys over to a stranger who wants to test the performance of their car, especially in LA where, "Dude, I smashed your car, shouldn't have loaned it to me" is a movie stereotype.

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans