Originally Posted by komodo
^^ Yep. I know for a fact I have EWS on my 328, and I'm pretty sure I do on the M3 also... but both my keys are silver.
And actually, my friend Zak owns a 1993 325i that shouldn't have it, and his key is silver also, but has a flat, squareish top, while my keys are rounded and thicker (almost bubbled out at the top). Zak's other car is a 2004 E46 325i (with EWS of course) and his key is... you guessed it... silver.
Are you sure?
I had a deep discussion with a technician that owns a 95 M3.
I was driving an e39 530i at that point and time, and we compared keys.
He showed me his and I looked at the e39s....and the e39 was indeed gold...and his was not. He said, an indicator of EWS.