If you work with cars what is the fastest car you have designed or help build?

Question: If you work with cars what is the fastest car you have designed or help build?
- Keywords:
  best,
  car,
  designed,
  fastest,
  work
Asked by barnes to Matt on 20 Jun 2011.
- Matthew Dickinson answered on 20 Jun 2011:
  
  I have worked on the resulting piston rings from the Porsche GT 998

Question: If you work with cars what is the fastest car you have designed or help build?