How do you unlock new cars on burnout paradise big surf island

There are 8 cars in total
You start with the dustorm ( dosent count as one of the 8)
Do its burning route to get dust storm super turbo
Jansen p12 special all island bill boards (delorean can hover press right toggle in)
Spectre spur all 75 island smashes (ghostbusters)
Bootlegger all 15 island super jumps (General lee)
Gt Nighthawk all road and showtime rules on island ( K.I.T.T)
Olumpus govenor 50% island liscense to unlock
Annialtor street rod 100% Island license
Must have all smashes,Billboards,superjumps and road and showtime road rules
Jansen P12 diamond all 500 freeburn challenges.