Michael SimariVehicle and Driver
Instead of subjecting the X7 SUV to its comprehensive M remedy, BMW defers the go-fast get the job done to longstanding tuning partner Alpina, which is accountable for the array-topping 612-hp 2021 XB7. As with the 7-sequence sedan and its B7 Alpina variant, the consequence is an impressively strong and refined machine that we would argue works better than a theoretical X7 M would.
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The BMW Alpina XB7 sits atop the X7 lineup and prices $142,295 to start.
The XB7 is primarily based on the X7 M50i design, which options a twin-turbo 4.4-liter V-8, eight-pace computerized transmission, and common all-wheel generate.
2021 BMW Alpina XB7Alpina updates the XB7’s engine with bigger turbochargers, a new energetic exhaust program, and more cooling capability. The consequence is a bump from 523 horsepower to 612 with torque climbing from 553 to 590 pound-toes.
Our 5864-pound XB7 examination automobile ran to 60 mph in 3.7 seconds, which is .4 next faster than the M50i design and only .1 second behind the Alpina’s closest rival, the 603-hp Mercedes-AMG GLS63.
With its optional 23-inch wheels shod with Pirelli P Zero PZ4 summer time tires, our XB7 stuck to the skidpad with .92 g of grip and stopped from 70 mph in a trim 149 ft.
In spite of its gigantic wheels and slender-sidewall tires, our test truck rode commendably perfectly in excess of Michigan’s inadequately managed roadways.
In contrast to BMW’s large-effectiveness full M products, Alpina’s versions are likely to be likewise immediate nonetheless to some degree softer and much more deluxe in character.
Our preliminary XB7 exam car or truck exhibited some unusual bucking motions though orbiting the skidpad at its grip restrict, which Alpina established was the end result of the vehicle’s personal computers considering a rollover was imminent and directing the suspension and brakes to overcorrect. Alpina has resolved towards revising its program considering the fact that the ailments had been so unusual that drivers will likely hardly ever come upon it. On the other hand, our test vehicle did exhibit some very similar suspension motions when quickly circling a freeway entrance ramp.
Exterior alterations for the XB7 are subtle. Aside from product-unique 21- or 23-inch wheels, these consist of a new entrance bumper with a further front air dam and ALPINA lettering, additionally a revised rear bumper housing four massive exhaust pipes.
The XB7’s interior is largely the similar as that of lesser X7s, apart from for some Alpina badges, a revised instrument-cluster display screen, and a swap from paddle shifters on the back again of the steering wheel to the tuner’s trademark shift buttons.
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