I'm pretty sure this thread started out as comparing two
cars one which was
old and one that is comparable to it
new...
However, I'm not gonna be rude and ignore the comparison so I'll take the BMW bike, because it's a BMW and I have no clue about bikes, and because it's a BMW.
Okay new one:
2012 BMW Z4 (E89) sDrive35is : £45,000
VS
2000 Lotus Espirit Sport 350 with 8,000 miles at £43,000
The comparison is a bit weird I know, but they have close performance figures, they're both 2 seater coupes and the Lotus is the only interesting car that wasn't a second/third hand Porsche or Ferrari at that price I could think of.
Edit: And as usual, my pictures aren't working - just use your imaginations because I'm removing them now.