Could consider speedrunning this game, when i have enough time and resources to do it. But, there is something that would be needed for group 4. Due to how overpowered they are for being the cost of most group 2 cars, the Kawasaki Ninja ZX-14 and Ducati 1098R are commonly used in the endgame, as their higher stats and low price were mainly done to trade-off for being easily damaged out, their risks of falling off, and longer reset time. I could consider running this game with the challenge of not using the very OP sport bikes. Maybe the GT, Gallardo or Vantage are the budget-wise choices to use.