There have been threads here and there about using the 128i 300mm vented rotors on the rear and how this allows you to retain the e-brake. I did the math based on what measurements I had and it seems these rotors actually offer more swept area than the E36 M3 rotors. The problem for most people just comes down to the calipers and required adapter brackets, so a while back I asked a guy in Canada to make them and he finally did :
E36 318ti Big brake adapter kit - SRS concept - store
http://srs-concept.com/product/e36-3...e-adapter-kit/ Full disclosure, I have nothing to gain from this other than the brackets which I already bought and are on the way. But, I figured sharing this would make several of you happy.
New rear brake upgrade solution! 
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