Solid information on the lightweight E90 M3 sedan
revealed at the recent special M event at Garching has been difficult to come by, but if Auto Motor Und Sport
is to believed, this lightweight E90 M3 will also receive the "GTS"
moniker, like the E92 M3 GTS coupe.
AMS claims the power output will be 440hp
, 10 less than the 450hp GTS coupe. This would be consistent with BMW's acknowledgement that the GTS sedan would have more power than the standard M3, but less than the GTS coupe. AMS also says that the M3 GTS sedan will utilize the 7-speed DCT transmission and feature a lightened interior with lightweight components in the center console and door panels, recaro seats, M3 steering wheel, and 6-point safety belts - similar to the GTS coupe interior.
The GTS sedan also features 19" wheels wrapped in 255/35 front tires and 285/30 rear tires with larger rotors (than standard M3), a modified exhaust system, and sport suspension.
No speculated weight figures yet, but BMW previously stated that its weight will come in between the standard M3 and the M3 GTS coupe.
Finally, AMS states that the M3 GTS sedan will make its auto show debut at the 2011 Frankfurt IAA autoshow in September. However, it will make its world public debut at the M Festival at the Nurburgring in June
Source: Auto Motor und Sport
UPDATE: Here's semi-official confirmation about the name badge for the Lightweight E90 M3. Bimmertoday noticed that BMW UK apparently made a small-ish mistake and gave away the final name by putting "M3 GTS Saloon" in the picture description of one shot.
We've checked the UK press site, and the photo including description is still up at their site. See the screenshot to the left.