Freedom from vibration is an inherent trait of straight-6 engines, and the 528i's 24-valve powerplant is one of the best of the breed. It delivers plenty of performance (BMW claims a 0-60 mph time of 7.7 seconds for the 528i manual, 8.7 with the automatic) and excellent fuel economy. As expected, the 540i accelerates more rapidly. The 32-valve V8 is also quiet and unobtrusive in ordinary use, making noise only when pushed hard. It has more of a thirst for premium unleaded fuel than its smaller-engined brother, enough to add a gas-guzzler tax to the price.
Regardless of suspension package and powerplant, 5 Series BMWs offer superb handling. In this respect, they are more like sports cars than sedans, tracking precisely through corners with minimal body roll. Both versions react crisply to steering inputs, with a tiny subjective 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.
Naturally, the V8 engine is the most fun, though the six is not exactly poky. The two manual transmissions require a firm hand on the shift lever, but 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.
Add your own review or comments
