There is no one answer to this question as the best way to achieve the fastest car depends on the individual and their driving style. However, some tips on how to make the Ferrari 599xx the fastest car could include:

  1. Use a high-performance engine. A high-performance engine can help increase your speed and performance.
  2. Use a good driving technique. Good driving technique will help you achieve better results in your car.
  3. Use a racing seat. A racing seat will give you an advantage over other drivers and will help you achieve better results in your car.