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M-fographic breaks down the history of BMW performance machinery

Few characters carry the kind of clout among performance enthusiasts as the letter M. For 35 years now, that one letter has adorned over 300,000 BMWs, each tuned to deliver a higher degree of performance than the stock models on which they're based.
The M division has worked up nearly 100 different models over the past third of a century, which can leave even the most expert among Bimmer fanatics bewildered. Fortunately British auto loan service Carfinance247 has commissioned this handy infographic to make sense of it all, and you can check it out below to see what the letter M really stands for.

2013 BMW R1200GS and HP4 duel at Circuito de Almeria

The 2013 BMW HP4 is the track-ready version of the manufacturer's already mighty S1000RR, which puts the bike at the very tip top of the two-wheeled BMW food chain. The R1200GS, meanwhile, is intended to be a somewhat more utilitarian machine. Capable of conveying both rider and gear over vast distances and uncertain terrain, the big-boy GS is the Swiss army knife to the HP4's rapier. Or at least that's what we've always been led to believe. BMW recently rolled out some footage during a press launch that showed the R1200GS is actually no slouch when it comes time to sling around a road course.
The company threw both bikes on Spain's Circuito de Almeria for a little sparring match, and miraculously, the HP4 didn't just up and walk away from the R1200GS. From from it. Instead, the two stay tightly matched through most of the course before something surprising happens. We won't spoil the ending for you. Is it possible the rider on the HP4 still had some in reserve? Sure, but from the sound and look of things, neither bike was giving an inch. Check out all the video action below for yourself.

2013 Nissan GT-R and 2013 Alpina B6 mix it up on track and street

Here we have Autocar making an unforeseen comparison: the Nissan GT-R against the Alpina B6 at Brands Hatch and on public roads. Steve Sutcliffe clobbers the circuit in the 3,828-pound, all-wheel-drive sports car, then sees how well the 4,114-pound, rear-wheel drive grand tourer does against it.
Sutcliffe says there are quite a few similarities between the two cars, but that's really only on the spec sheet. The Nissan's got two turbos attached to its 3.8-liter V6, 542 horsepower and 465 pound-feet of torque. The Alpina's got two turbos attached to its 4.4-liter V8, 532 hp and 528 lb-ft. But one's brief is to be a monster on the track, the other on the boulevard, and if there's anything the video demonstrates, it's each car's focus.