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The BMW 645Ci Coupe ($69,900) and 645Ci Convertible ($76,900) are nearly identical in temperament and equipment. Leather upholstery, a choice of rich interior trim, and a long list of luxury features are standard, including a sports suspension, 18-inch wheels, xenon adaptive headlamps, and park-assist.

BMW's 4.4-liter V8 powers the 645Ci models, delivering 325 horsepower to the rear wheels. A choice of transmissions includes a six-speed manual gearbox (standard), a six-speed automatic with Steptronic (a no-cost option), and a six-speed sequential manual gearbox ($1,300).

Options include Sirius Satellite Radio ($670); heated front seats ($500); active cruise control ($2,200); head-up display ($1,000). The Sport Package ($2,800) adds active steering, 19-inch sport wheels with run-flat tires, and sport seats. A Premium Sound Package ($1,800) includes Logic7 audio with six-disc CD changer. A Cold Weather Package ($750) includes heated front seats, a heated steering wheel, and a ski bag.