This is the latest spyvideo of the 2012 3 series of the 335i Prototype (F30).

The 3 Series is born from the design elements from the F10 5 Series.

The side profile sports a double line that starts above the front arch and runs to the rear light cluster.

Based on the brake rotors and engine note, we believe we are looking at a prototype running with a six-cylinder engine.

The new 3 Series will use four and six-cylinder powerplants. Both are making use of the twin-scroll lagless turbochargers.

BMW will officially introduce the F30 3 Series at the Frankfurt Motor Show.