The 428i GC’s test sheet states as well as duplicate from the coupe’s. Together with similar gearing and also putting on the same staggered 18-inch Bridgestone Potenza S001 run-flat all season tires, this GC raced the quarter-mile in 14.2 seconds on 98 Miles per hour, just a tenth of the 2nd and 1 Miles per hour behind the coupe. A 162-feet stop from 70 mph trims 2 ft from a coupe’s high performance. skidpan grip has been the same at 0.89 g.
This cars betray not anymore difference on the highway. The moment you had picked a sport driving mode to be able to stiffen up a adaptive dampers included in the $1000 Dynamic Handling package upon our test automobile, the GC demonstrates the platform’s customary characteristic: the satisfyingly reliable control from body movements undermined by unexceptional steering sense.
The 3664-pound Gran Coupe weighs in at 135 pounds more than the coupe, sufficient to drop the EPA highway rating from thirty-five mile per gallon to 34 for the GC. Most of us found twenty seven combined.
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