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A closer look at the 2015 BMW M3 sedan and M4 coupe: Turbocharged performance is gonna cost you

By the time the 2015 BMW M3 sedan and M4 coupe were revealed at the Detroit auto show, we already knew a lot about what to expect from the Roundel's newest generation of high-performance driving machines. It was no secret, for example, that the new M3 sedan and its two-door counterpart, the M4, will be down two cylinders and a few hundred pounds from their predecessors. Now that we've had a chance to get a look at the cars in production trim, here's a closer look at what's under all the aggressively vented fascias, spoilers and M badges.

2012 BMW 6-series coupe revealed in production trim

Following an initial preview in a lightly veiled concept car shown at the Paris motor show, BMW has finally revealed the definitive production version of the 6-series coupe. Set to get its first public airing at the Shanghai motor show in April, the upmarket coupe is planned to follow the 6-series convertible into North American showrooms later this year, providing BMW with a contemporary two-door to rival the Jaguar XK and the Mercedes-Benz E-class coupe. The BMW was shown by AutoWeek this fall (“Sexy 6-Series,” AW, Oct.

Le Mans regulations for 2014 announced

The organisers of the Le Mans 24-hour have announced a raft of radical new rules on the eve of the 2012 race - including the less restricted use of hybrid power for the top-flight LMP1 racers from 2014. The governing ACO (Automobile Club de l'Ouest) unveiled the major changes due in two years' time as the teams start the 80th 24 Heures du Mans event which runs from Saturday 16 - Sunday 17 June 2012. In order to stay in tune with our environmentally-conscious, economically-chastened times, the focus of the alterations is to improve the efficiency of the elite LMP1 cars' technology and cement a link with roadgoing hybrids, as well as making the race cars safer.