Freedom from vibration is an inherent benefit of inline-6 engines, and the 528i's 2.8-liter is one of the best of the breed. It delivers great performance. BMW claims the 528i with manual gearbox can accelerate from 0-60 mph in 7.7 seconds, 8.7 seconds with the automatic. It also delivers excellent fuel economy, earning an EPA rating of 20/29 mpg city/highway.The 540i accelerates even more rapidly, covering 0-60 mph in just 5.8 seconds with the manual, 6.2 with the automatic. The powerful 32-valve V8 is quiet and unobtrusive, making itself heard only when pushed hard. With its tremendous torque, this engine does give the 540i an edge in sports appeal over the 528i. The 5 Series BMWs offer superb handling, regardless of suspension package and powerplant. They are true sports sedans, tracking precisely through corners with minimal body roll. Both versions react crisply to steering inputs, with a slight edge in feel going to the 528i. For the ultimate in razor-sharp road behavior, the Sport suspension package is the choice. Stiffer springs and shock absorbers result in a slightly harsher ride quality, but a small tradeoff in comfort is more than made up for by driving pleasure. The manual transmissions work with precision and smoothness. The automatics are equipped with adaptive electronics that tailor shift programs to driving style. A sport shift program is followed whenever the 528i's transmission selector is in the third gear position, or the 540's lever is in fourth. The disc brakes with ABS are flawless.
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