Wheels recomandation
 

We're building this car based on a 407 coupe. We chose this donnor because it's the widest car that matches the oem wheelbase. The track needs to be widen 7cm on each side so instead of spacers we thought about concave wheels that would stick out and eventualy some small spacers. I didn't find anything at a decent price besides 3sdm. 20" or 21". Any ideeas?
https://scontent-fra3-1.xx.fbcdn.net...6b&oe=581D965D

Matches what oem wheel base?

A Veyron?