Think the new Z4 is a bloated boulevard cruiser unworthy of the roadster-implying Z badge? We’d tend to agree. Which is why we were chuffed to see renderings of a possible BMW 1 Series-based Z2 roadster in the most recent Auto Motor und Sport (print edition). Several Einser engines will be available say AM und S, up to and including the 306 hp 135i engine. BMW M division boss Kay Segler even hints that an M car based on the 1 series is in the works. This roadster seems like as good a variant as any for the treatment.