The new 2012 BMW 3 Series made its U.S. debut today at the Detroit Auto Show. The midsize sedan will show up in showrooms next in two flavors: the 328i and the more powerful 335i.

The base price of the 2012 328i Sedan is $34,900 and the 335i Sedan is $42,400. This represents a $300 and $350 base price increases versus the outgoing model.

The 3 Series now includes standards features such as 6.5” display with iDrive controller, Bluetooth connectivity, USB/iPod interface, 8-Speed Automatic Transmission, Automatic Start/Stop, Dynamic Driving Control with ECO PRO Mode, Brake Energy Regeneration, and a 1” standard wheel size increase.

The Modern Line (ZML) and Luxury Line (ZLL) will sell for an additional $2,100 for the 328i and $1,400 for the 335i model. The Sport Line (ZSL) will make you spend $2,500 for the 328i and $1,700 for 335i.

The M Sport Package will be available at launch time starting December 2012 and will bring the ultimate in sporting makeovers to the new BMW 3 Series. An all-new aerodynamic package for the exterior clearly sets cars specified with this package apart from the base model and the three lines.

Here is our first photo gallery from Detroit and stay tuned for more 3 Series coverage, including M-Sport package photos.