The All New 2018 BMW M5
The engine broadcasts a more complex and slightly hollow thunder that sounds more convincing than the bassy monotone of the last car. The new M5’s engine won’t tie your ankle tendons to the throttle plate of a 500-hp V-10 as the E60 M5 did a dozen years ago. Nor will it worm its way into your psyche
In place of the outgoing M5’s seven-speed dual-clutch automatic, the new car uses an eight-speed automatic that is technically flawless. It shifts so rapidly as to mask any momentary, infinitesimal torque reduction and picks the right ratio at the right time.
BMW claims this new M5 is lighter than last year’s model, a remarkable feat considering the triple-digit weight penalty of the all-wheel-drive system. The savings come from a lighter body shell with a standard carbon-fiber roof and relentless attention to detail throughout the rest of the car. Optional carbon-ceramic brakes will save an additional 51 pounds and should be considered a mandatory buy for anyone visiting the track in this 4350-pounder.
M engineers, of course, must work with the base car they’re given, and so they’re powerless to do anything about the current 5-series’ long and wide body. Inside the well-trimmed cabin, driver and passenger sit far enough apart that they might as well be in marriage counseling. At least that leaves adequate real estate for the sundry buttons to fiddle with the throttle calibration, transmission shift speed, steering weight, damper stiffness, and exhaust mode.
Also see our test drive of the 2018 Acura RLX Hybrid