This is a silly discussion.
Comparing 2 cars of different generation with 10 of years difference that is.
Of course the new car is going to be bigger and heavier, EVERY SINGLE CAR on market is the same.
They have to be increased due to safety regulation and what not.
The way the 5 series is being able to perform the same or even better with the extra weights just proofs the advancement of technology.
2011 535i Alpine White, Oyster on black interior, Premium 1 & 2 Package, Magnaflow Full Cat-back Exhaust, JB4 Stage 2