Tools

[thereisnoyun]

there are a bunch, depending if your e30 had some of the bolts replaced or not.

diff output shaft can be reverse torx
m20 throttle coolant piece is torx
airbag modules and the ground mount under the dash.

I'm sure I can think of a bunch more later, but there is quite a few.

[phenryiv1]

As has been said, having a set of torx and reverse torx are essential. For about $15-20, you can get a servicable set of both at HF.

[ldsbeaker]

... or any other BMW.

(tranny job this weekend on E34) Needed all kinds of stuff.

[evil_twin]

the trans has etorx. the plastic bumpers came with either allen keys (8 or 10mm) or T55 torx.