[Glawen]

I know engineers who worked for Porsche, they are doing things independently from VW. The only thing they took from VW was the cayenne chassis and it's diesel engine. They were absolutely pissed by the diesel gate as they were unaware of it and quickly removed diesel from their lineup.

They share some functions like brake SW or ACC, but they do their own engine and chassis.

Otherwise they source their stuff alone, and due to the low sales number they struggle to find willing suppliers.