Continue to do this with the races that award these cars (see list below) until you have all of them,the best car in the game, and huge amounts of credits. Next do the Stage Route 11 race with your new car, and you should easily win 500,000 credits and use the 'Chose your car trick' once again to get the next F1 car in the series. After winning this race, you will have 200,000 credits and one of the best cars in the game.
When you win the Endurance Super Speedway Race (a fully upgraded Mustang or Mitsubishi 3000-GT w/ slick tires is impossible to lose with) use the 'Chose your car trick' to pick the the first of the F1 series cars.
