Originally Posted by ColdList
Hartge doesn't actually tune anything. Their primary business is wheels. Check the lasting results of that piggyback and what happened. I should have not replied to this thread. This creates arguments. It is the truth about the tune. Honestly I am leaving it at that. It can be verified if you investigate it.
I'm not going to argue on the tuning base for the Hartge F10 M5 other than just say that their car is awesome and seems to be quick
However I believe you forget Hartge's history with cars like the E30 H35 24V cars etc. Hartge is also classed as a manufacturer in Germany and have their own VIN numbers stamped on the cars. So I believe they are more than just wheels...