Inside, AC has a number of upgrades immediately available including aluminum shift paddles, foot pedals, a footrest, and a key holder. These upgrades are all suitable for that aforementioned M4 Convertible too, but more exciting are the planned offerings. AC Schnitzer is currently developing a performance upgrade with a warranty, engine accessories, a stainless steel exhaust system with “Carbon Sport” finishers, RS adjustable suspension, and aero upgrades like front winglets, mudguard deflectors, a “Racing” rear wing with an optional Gurney flap, and a carbon diffuser with an optional frame and a third brake light. There’s no word on cost, but expect these upgrades to be rather pricy. Or save yourself some cash and potential abuse from your friends and leave your M4 stock. The choice is yours.