BMW announced the base prices for several new models which debuted today at the 2011 North American International Auto Show in Detroit. The hotly anticipated 2011 BMW 1 Series M Coupe will go on sale with a base MSRP of $47,010. The stunning, all-new 2012 BMW 650i Convertible will start at $91,375. Finally, the updated and better-equipped 2012 BMW 1 Series models will be priced as follows: 128i Coupe, $31,825; 135i Coupe, $39,925; 128i Convertible, $37,475; 135i Convertible, $44,675. All prices include $875 destination and handling fee.

The all-new BMW 1 Series M Coupe, at $47,010, is a car built by BMW’s most enthusiastic engineers for BMW’s most enthusiastic drivers, and signals the youthful, energetic future of BMW M. Essentially a BMW M3 chassis with Competition Package packed into a modified 1 Series body, the 1 Series M Coupe is one of the fastest, most remarkable M vehicles ever built. It features one of the most powerful inline-6 engines BMW has ever built, massive brakes, and a very wide footprint for maximum agility and stability in the spirit of the original BMW M3, which was a race-ready homologation special. The 1 Series M Coupe will be available in limited quantities as a 2011 model.

BMW’s magnificent new 650i Convertible ($91,375) features a lower, wider canvas on which the designers have crafted an elegant shape of pure dynamic presence. Going on sale as a 2012 model, the 650i Convertible features BMW’s 4.4-liter, “reverse flow” V-8 engine with 400 horsepower and 450 lb-ft of torque. Two transmissions are available, including the standard 6-speed manual and BMW’s brilliant optional 8-speed automatic, both suited perfectly to the sport-luxury mission of the 6 Series. As with the previous 6 Series Convertible, the new 650i Convertible features a super insulated folding soft top which can retract in a mere 19 seconds at vehicle speeds up to 25 miles per hour. The interior of the new 650i Convertible features a fresh, ergonomic design with more passenger space, improved ergonomics, and superb material choices, including optional full-leather trim with contrasting stitching.