Molded composite straight back upright with 2 roll center jobs, applied to left or right part. The compact rear uprights are tiny in proportions but because of the important composite mixture used also quite strong. The reduced roll center modification has 2 various jobs about the upright as well as the top roll center modification has 3 various jobs. The trunk uprights feature 0° toe to make certain protection preventing suspension system geometry alterations in hard crashes.
For maximum drive train dependability larger 5x12 ball-bearings are employed inside external position with a rise of effective load. Regarding internal destination little 5x10 ball-bearings are used to reduce unsprung fat.