Our 428i GC’s test out sheet states like a replicate from the coupe’s. With the same gearing along with putting on the same staggered 18-inch Bridgestone Potenza S001 run-flat all season tires, this GC ran the 1/4-mile within 14.2 seconds on 98 mph, just a 10th of a second and 1 MiH behind this coupe. A 162-foot stop coming from 70 mph trims 2 foot from the coupe’s overall performance. skidpan grip was exactly the same at 0.89 g.
The cars betray no longer difference on the highway. The moment you’ve selected a sport driving mode to be able to stiffen up the adaptive dampers as part of the $1000 Dynamic Handling package on our test automobile, this GC shows the platform’s customary characteristic: a satisfyingly reliable control of entire body motions undermined by unexceptional steering sense.
This 3664-pound Gran Coupe weighs in at 135 lbs more than the coupe, adequate to be able to drop the EPA highway rating from 35 mile/gallon to thirty four for the GC. Many of us discovered twenty-seven combined.
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