Your comments miss my point completely

I enjoy Bimmer as a ultimate driving machine. Honestly, it's interior design is not as good as other brands, but who cares.

By weekend driving, I mean take it to track, enjoy the twisties/backroads, havings some cornering fun on ramp, join car club funs, etc; meaning driving like a Bimmer and drive hard.

You don't get to do this for daily commute. As I said, BMW's is not good in the interior design department. Get a Lexus to get stuck in traffic.