Hankooks are not bad, have run them on my E36 M3 for probably 20yrs now, no not the same set, I think 4 or 5 now :P

seat might be a switch if you cant hear the motor run.

I have printed gears in my E36 seat recline now for 10yrs probably, they were from a speedometer gear shop online. They looked resin printer printed

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2004 X5(E53) 3.0L
1999 M3(E36)
2003 Z4(E85) 3.0L