Here is another spy video of the next-generation BMW 3 Series, its debut being just around the corner. To be more precise, the Germans from BMW plan to unveil the new BMW 3 Series, known as F30, at the upcoming Frankfurt Auto Show this month. The following spy video shows the new 3 Series sedan undergoing tests in Sierra Nevada, Spain.
Even the German model still wears a layer of camouflage, the video shows some precious interior shots as well. According to the photographers, the prototype caught in this video uses a diesel unit, the model being limited to a top speed of 210 km/h.