2015 BMW X4 2.8 i powerful
2015 BMW X4
2015 BMW X4 2.8 i Just under 100 pounds lighter, the 28i did much better than its sibling in braking, stopping from 70 mph in 175 feet against the 35i’s 192-foot figure. Both X4s, though, experienced brake fade, atypical for BMW but a trait we’ve noted in several X3/X4 tests since 2011. The tires were the same run-flat Goodyears on 19-inch wheels, and skidpad grip was basically identical here at 0.85 g. Our test driver reported moderate understeer, noting that it was easy to induce oversteer in the xDrive28i, which carries less weight on its nose; the four-cylinder model’s front axle supports 49.3 percent of its heft against 50.8 percent with the six.
Many Parallels—Including Fuel Economy
These measurable distinctions amount to small Löwen bräu in real-world driving, as were our fuel savings. We achieved 21 mpg in this car and 20 with the six. The engine is the only notable difference, since the final-drive ratio and the gearing of the eight-speed automatic transmission are identical.
2015 BMW X4 2.8 i ENGINE TYPE:
turbocharged and intercooled DOHC 16-valve inline-4, aluminum block and head, direct fuel injection
Displacement: 122 cu in, 1997 cc
Power: 240 hp @ 6500 rpm
Torque: 258 lb-ft @ 1450 rpm
TRANSMISSION: 8-speed automatic with manual shifting mode