Yes, she is a beauty, but you need to think about the engine specifications first. The V8 4.0 L engine car offer you an amazing 420 bhp, making in one of the most powerful BMWs on the market. Not many convertibles can achieve what BMW has achieved with the BMW M3 Convertible. Obviously, BMW has decided to set the maximum speed at 155mph. In other conditions, the BMW M3 Convertible would surely reach a higher speed. This beautiful monster can also reach 62mph in only 5.3 seconds.