Originally Posted by SamS
For the time being, it think you should consider the AH3 credit, since anyone can use it, and it effectively narrows the 335i price delta. Without the credit, I personally would not have considered it. The "premium" I (personally) was willing to pay was only ~$1K vs a 335i. Much more, and the AH3 would have been a tough sell, even to me.
The ASS of the AH3 is quite different than the other F30s. For that reason alone, I expect real world combined mpg to be noticeably better than the EPA 28mpg rating.
I think the ASS will be lightyears better because it's using the electric motor instead of the starter. Should be much smoother and more efficient.