My friend just bought an F30 and he let me test drive it. I say the interior is a big improvement & much more elegent. First thing I noticed is that the steering wheel & gas pedal is smoother. I tried all 3 driving modes: ECO PRO - fuel efficient but the car is very weak; COMFORT - I didn't notice anything much; SPORT - I say is the real typical BMW setup & I use the steptronic to try the 8 speed transmission. Wow it was faster than I thought for a 4 cyclinder.
Overall, I like the interior, the steering wheel & the pedal feel. But...I still like the look of the E90....