[MarkR171]

"Better" is an opinion.
The "3rd gen" runflats on the 2011 135s (different from previous years) is a lot better in terms of ride quality. The ride is almost as smooth as my brother's C300 Mercedes. The 128 will only have a softer suspension if you don't get the sport package. If you don't get the sport package, you don't get the sport seats, which in my opinion, are a must have. They're great!

As for power delivery, I don't know how the 128 can be smoother as the 135 is already quite smooth. The 135 doesn't feel like a car with a big turbo, it has smooth delivery. People don't push their cars all the time, but it's still nice having a lot of power and low end torque for on ramps, passing, etc. You don't have to be driving at the limit to enjoy the extra power.

That being said, the 128 isn't by any means "slow." It has plenty of power for it's size. From what I've read, the 128 doesn't have the same steptronic transmission that the 135s used to come with, and the 128's transmission isn't quite as good. So a 6MT would be the only logical choice for a 128.