Use infinate:Crew charge(down,up,up,right,left,left,X),Nitrous(left,up,left,down,left,down,right,X)and Speed breaker(down,right,right,left,right,up,down,X).Then start a new career and choose the Mazda after escaping Cross.Win the race that gets you nitrous,equip it,and then play from there.You should eventualy get $1,000,000.
The rx-7(fully cusomized) you win can unlock the lambirgini(the first canyon duel it also takes a very good drive)but youll have to finish supping it up the best way to beat the exotic boss is with a muscle car I beat him with a stock camaro ss(i started out with exotic)
Unlock 1 or both of the lamborginis then switch crew members to the grl with the ford gt and go buy one of them then later a better car will be un locked (if you still have her as active)it costs 216,00 or so
The best car to start with is the Nissan 240sx. In order to do this you must start career (it helps if you have a need for speed underground 2 file), then when you pick your car pick the cheapest one (rx8) after the “training” exit career and beat the challenge series event that unlocks the 240sx. Then resume career and go buy the 240sx from the car lot. (You can also sell your other car for more money).