But wait there's more. While driving, a button on the steering wheel - amid a myriad of alternatively specified buttons that control everything from the 6-disc in-dash CD audio system to voice activation - allows the choice of 'Drive', 'Sport' or 'Manual' shifting mode, the latter actuated via steering wheel shift buttons. Whatever drive configuration the 745i whisks scenery into its rearview mirrors at an alarming pace. An entirely reworked 325-hp 4.4-L, 32-valve, DOHC V8 saves only the bore and stroke from the outgoing engine. Now, its block is made of silicon-impregnated aluminum, topped off with double VANOS heads that vary intake and exhaust timing to widen its powerband while reducing emissions. The new intake manifold is also variable. The optimal intake length for any condition is derived via a rotating servo connected to both internal helical elements. Greek? No, German for brilliant.
Also of note, Valvetronic is BMW's patented answer for varying intake valve lift, to the level that the valves themselves act as the traditional throttle. While benefiting cold weather starting, Valvetronic also improves overall response by increasing effective power.
So what's the result of all this techno-jargon? Despite its increased size - 45.7 mm (1.8 in) longer, 40.6 mm (1.6 in) wider and 35.6 mm (1.4 in) taller than its predecessor - the hefty 1,157 kg (4,376 lb) 745i sprints to 100 km/h in an exhilarating 6.2 seconds while the ZF 6-speed automatic shifts with fluid perfection, taming its 330 lb-ft of torque in the process. That's fast company indeed. An even heavier 745Li increases legroom while hardly compromising performance.