Engine management · BMW E23 735i
VDO Idle Control Valve
The two-winding rotary idle valve from a BMW M30 (part 1 286 688). Cut it open, drive the duty, load the engine and watch the ECU hold 800 rpm.
Body hardware · Model 3 decklid
Trunk Hinge & Gas Strut
A four-bar trunk hinge balanced by a nitrogen gas spring. Open and close the lid, see where the gas wins over the lid's weight, and take the strut apart.