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"  The M3 is probably BMW&amp;#039;s most iconic nameplate, and now the sports car splits its name in two. Following the company&amp;#039;s new naming convention \u2013 odd numbers for sedans, even numbers for coupes, the former M3 is now the M4 in sedan form. Mechanically, the two cars are basically identical, with a twin-turbo inline-six engine providing 436 horsepower. Compared to the last M3, the new car&amp;#039;s weight has been reduced by about 175 pounds, thanks to extensive use of carbon fiber \u2013 including the driveshaft and roof. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/cars/a9923/detroit-2014-bmw-m3-sedan-and-m4-coupe-16376497/>