The 2009 BMW 650i shares basic chassis elements with the 5 Series
Sedan, but its 4.3-inch shorter wheelbase and slightly wider rear track dimension add an extra measure...
... of agility and surefootedness, while a host of computerized "active" control elements – from stability to traction to the anti-roll bars themselves – ensures it maintains that superb composure on virtually any kind of road. Although the suspension is tuned more for control than pure comfort, the 650i is still a first-rate cruiser. The silky 360-horsepower V8 takes it from zero to 60 mph in just about 5.5 seconds, regardless of whether it's backed by the conventional six-speed manual or the Sport six-speed automatic.