Handling, balance, engineering for structural rigidity, materials science, network effects (knowing who and how to deal with), aerodynamics, etc. Cars aren't b

Handling, balance, engineering for structural rigidity, materials science, network effects (knowing who and how to deal with), aerodynamics, etc. Cars aren't built by standalone coach builders and haven't been for decades (unless you're Morgan... :) ). Relationships with a large number of third parties are likely par for the course these days. Just because the chassis is different doesn't mean the rest of the system gets thrown out the window (significantly changed, perhaps, but I spect there's a lot of knowledge that's still in play).