The weight distribution of the e93 while not the same as the coupe is also very close to 50/50.
Just wait 2 months when I put in buckets and rip out my rear seats. Between that and my hood, trunk, full akra, bbk etc I should be right around coupe weight. Now that's going to be alot of fun/awesome!
Some may call me crazy for doing it but I love my E93, of course I don't have your average e93 but they are alot of fun.
I do agree they are at a great disadvantage weight and rigidity wise.