Items that stick out to me:

- The battery may be moved from its stock location as long as it is not placed within the passenger compartment. The battery may be replaced with any 12-volt battery.

- Wire mesh screens with a minimum opening of 3/16” cont. may be fitted... (we're 1/4", right?)

- A BMW OEM or dimensionally equivalent steel flywheel must be used.

- Any stock transmission, including automatics, correct for the body series may be used....Shift linkage may be modified or replaced.

- Engine, transmission, and rear differential mounting material is unrestricted. Drive train mounts of alternate material and design may be used...

- Power steering components may be disabled or removed.

http://www.icscc.com/references/comp...3_complete.pdf

Starting page 71 (PDF p74).