It's a z4 with an s65b44 and it's allowed to race in homologate classes?
strangely stretched on tires though? That added wheel width is just dead weight? Can anyone explain that design choice?
A 300mm tire on a 12.5" wheel sounds like 'stance'.. Let alone on a 13" Does the stiffer stretched sidewall help with handling?
Can anyone explain the sizing though? 300/680/18? Overall diamter rather than 'profile' ?