Certainly helped by following ... "Even with the roughly 150-pound penalty of all-wheel drive, the new M5 weighs in at 4288 pounds—which sounds like a lot, but that’s 110 pounds lighter than*the most recent previous-gen M5 we tested(which had a manual) and 299 less than the E63 S. In addition to a carbon-fiber roof panel and a lithium-ion battery, the new 5-series platform uses more weight-saving aluminum than before.*"
Some who have been arguing for Merc are kicking themselves