You can't buy the 2011 BMW 5 Series yet, but German tuner Racing Dynamics knows what it's going to do to the car when you can. Opt for the 535i and you'll take delivery of a sedan turned into an R35, pulled by a turbocharged six that's got a 104-horsepower bump to 410 along with 385 pound-feet of torque. It will get to 60 miles per hour nearly a second faster than the standard 535i.

But if you can, why not take the R50S? That's a 550i taken from 407 ponies and boosted up to 620 horsepower. Controlling that oomph will be a Racing Dynamics sport suspension, locking rear differential, and a brake system with slotted discs that can handle 800 degrees Celsius. Making it sound good will be a new exhaust, and making it look good will be a minimal bodykit featuring a pair of dual pipes and 21-inch forged wheels.

[Source: Bimmer Today (translated) via BMW Blog]

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