A refreshed BMW 4 Series is in development, as we've seen in a plethora of spy photos. But the purple ragtop featured here is actually the first time we caught a high-performance M4 test vehicle ...

473.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Gasoline Fuel) $700 Starting MSRP $1,300 Starting MSRP Wondering which trim is right for you? Our 2023 BMW M4 trim comparison will help you decide.