In what looks to be production trim shooting for a commercial (or some sort of video), these new spy shots show the 3 Series GT in two different trim levels. The brown car looks like the standard version of the design while the silver car is an M Sport package as evident by its aggressive body kit, upgraded wheels and brakes and the M badges on the fenders. Other than the obvious fastback-style roofline, it appears that the GT will get its own unique sheet metal (including a redesigned front end) compared to the latest 3 Series sedan. Two things we can't tell about the car from these spy shots are what the interior will look like and whether or not it will be using a similar two-mode hatchback as the 5 Series GT that features a smaller sedan-like trunk opening or a larger liftgate opening.
Like the 5 Series GT, this new 3 Series model focuses on expanding the passenger and cargo volume of the car with a longer wheelbase (reportedly riding on the same wheelbase as the Chinese-market, long-wheelbase 3 Series sedan) and a longer, taller, rounder roofline.