The balance dynamics are not the same for an inline four as an inline six. A boxer four is balanced.
The 8AT is the same in both cars. And it will be also in the xDrive models. I spent quite a bit of time talking with a ZF rep in Detroit at the NAIAS. ZF also supplies the electric steering for BMW. I did not know that. He said the steering characteristics are all about the programming. They also supply EPS to Ford. He said they have it in one (or more?) of their Super Duties and it has completely different programming.
I asked him about after market re-programming possibilities. He didn't know, but he gave me the phone number for ZF's After Market unit. I've been meaning to mention this. I'll find it and post it.
Present - '06 E90 330i sport; Past - '04 E46 ZHP, '00 E46 328i
www.bmwcca.org member #388003 - Use me as a referral & you could win a one day ///M Driving School!!
Last edited by tturedraider; 02-03-2012 at 11:08 PM.