The 1968 Chevrolet Corvette F1R3 Ed. (Touring Car) suspension bug is a bit more odd. After the Season 8 update, the stock height is oddly higher than it used to be from what I remember. I do not have any pictures to show of stock height before and after update sadly. As for applying upgrades, the suspension gets even higher when upgraded. https://imgur.com/a/Vv3VWKA
Siege level Reset after trying to cross progress