G23 LCI M440i xDrive Convertible 2dr Steptronic 8sp AWD 3.0T A radical, deep kidney grille and heavily sculpted sides differentiate the BMW 4 Series coupe and convertible from the donor 3 Series sedan. Longer, wider and taller, the new 4 Series comes in coupe, five-door hatch and convertible form and, in M Sport or M440i form, with rear-drive or xDrive AWD, and three engine choices: 135kW 420i and 190kW 430i 2.0-litre turbo four-cylinders and the M440i's 285kW inline turbo six. An upgraded chassis and a lower centre of gravity improve handling and infotainment includes BMW's Operating System 4.0 with built-in SIM card and 4G connectivity offering offer real-time traffic information, intelligent emergency calling and remote start.