That is one sexy Beemer, though I'd be pissed if mine was showing those problems while still young. Interesting piece at the link there. I'm all for saving weight, but I'm not sure I want alu-minium anywhere in my frame or suspension. Metal fatigue too big a danger with aluminum. That particular car, I'd want to cherish it for many years -- no throwaway car that.

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1986 300SDL, 362K
1984 300D, 138K