Audi R5 The upcoming Audi R5 roadster has routinely been called the “Baby R8,” in reference to its design similarities with the German automaker’s high-performance mid-engine supercar. We doubt Audi minds the comparison. This new entry-level Audi sports car is being developed in cooperation withVW and Porsche, both of which will spin off their own variations. This illustration offers a look at what Audi’s convertible version will look like. A hardtop coupe is also planned. VW already offered a preview of what’s to come at the 2009 Detroit Auto Show, where it displayed its sleek 2-seat diesel-powered Concept Bluesport. Porsche has been a tad more secretive, but we expect its version to slot beneath the Boxster in size, power and price. A 1.9-liter flat-4 cylinder engine will power the Porsche, whereas traditional inline-4 cylinders (and possibly an inline-5) will motivate the VW and Audi. The platform will accommodate rear- and all-wheel-drive systems. Hybrid and electric-powered versions are also possible.