Prospective non-Boss car roster:
Jaguar Lightweight E-Type
BMW 3.0 CSL
Renault Clio
Nissan 370 Z
Ford Mustang GT Premium
Chevrolet Camaro ZL 1
Ford Shelby GT 500
(from Wikia)
Make sure you got them all serviced.
Prospective non-Boss car roster:
Jaguar Lightweight E-Type
BMW 3.0 CSL
Renault Clio
Nissan 370 Z
Ford Mustang GT Premium
Chevrolet Camaro ZL 1
Ford Shelby GT 500
(from Wikia)
Make sure you got them all serviced.