Our spy photographers caught images of a topless version of the new BMW 3 Series, likely to be named the 4 Series Cabriolet.Now it seems the German automaker is testing a coupe variant of its new 4 Series.Ever since the new BMW 3 Series was launched earlier in 2012 we’ve been eager to catch a glimpse of the coupe version, to be named the 4 Series. We’ve managed to get our hands our spy images of the new 4 Series along with the German automaker’s performance variant – the M4. 335KW ON TAPThe new model borrows the front end of the 3 Series along with a lower nose, flared arches and the trademark M division side vents. Image gallery!The rear end is very reminiscent of the current coupe.The new M3 and M4 models were recently confirmed by Ludwig Willisch, president of BMW North America, to be powered by an in-line six-cylinder turbo engine. The new M4 Coupe is expected to deliver 335kW.