E70d is a really really nice option for a DIY and auto-involved person. 35i best option for non DIYer that likes to drive without worry of monstrous repair lurking around the corner.
Ironically, the only V8 BMW I moronically bought, I had to immediately ditch at a loss for all reasons apart from the engine (4.6is).

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03 3.0 Alpine/Blk (sold) Sport, Prem, CWP, PDC, Xenon
10 35d Titanium/Blk - Sport, Lux Seating, Prem, CWP, Tech, Rr Climate, CA