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2013 Dinan S3 BMW 550i

Steve Dinan has been enhancing BMW models since 1979. But don't throw his company into the ring with the dozen or so other tuners who tweak, tinker and piggyback upgrades on the famed German marque. Dinan is a tuner, but it's also an engineering firm that writes its own software, builds its own parts and then backs everything it does with a factory-grade warranty. That sort of fastidiousness comes at a price, but most of its customers - including the powerhouse of BMW Motorsport - rely on Dinan to help them come out on top.
In stock form, BMW's 550i is a formidable four-door with a twin-turbocharged 4.4-liter V8 rated at 400 horsepower and 450 pound-feet of torque. While those figures allow it to run with quick company (0-60 in 5.0 seconds, according to the automaker), Dinan puts the sedan's kettle on full boil with its S3 package. Starting with the engine, the performance engineering firm bolts on larger turbochargers, air-to-water intercoolers, a trick strut tower brace cold air intake, a quad-pipe free flow exhaust and its own engine management software. Pump in some premium fuel, and the result is 542 horsepower and 587 pound-feet of torque. Power is sent through the stock eight-speed automatic to a limited slip rear differential (Dinan will upgrade xDrive all-wheel drive models, too).
The Dinan S3 also features and extensive suspension upgrade that includes new front camber arms and low compliance rear control arms (engineered to reduce understeer and improve turn-in). The stock dampers are retained, but new bump stops are installed along with new springs. Overall, the car rides about a half-inch lower than stock to improve roll rate. To reduce unsprung weight, forged 20-inch HRE Performance wheels are fitted at all four corners (wearing Michelin Pilot Super Sport tires - 275/35ZR20 up front and 295/35ZR20 in the rear). Lastly, the company remaps the factory Electronic Damper Control (EDC) software with its own Dinan Shockware to work in conjunction with the new enhancements.

Next BMW X6 to be larger, more aggressive

If the current BMW X6, introduced in 2008, is looking a bit too bland for your tastes, have no fear as the next-generation model is reportedly going to be larger and more aggressive than its predecessor.
Autocar is reporting that an insider has revealed the all-new second-generation X6 will make its world debut at the 2014 Moscow Motor Show, going on sale just after summer. More aggressive styling will help BMW distinguish its sportier X6 from BMW's more practical models, such as the X3 and X5, said the source.
The next X6 will again share platforms with the X5, but it will be stretched slightly to provide second-row passengers with more legroom. Powerplants will also likely mirror those of its mainstream cousin, including a range of turbocharged six- and eight-cylinder engines and a range-topping M model (the 2013 BMW X6 M is show above).

Next-generation BMW 5 Series spied in Touring trim

It almost seems as if BMW just started selling the current-generation 5 Series, yet one of our spy photographers has already spotted a next-generation prototype in Touring form. Little is known about the luxury wagon in this early stage of testing, but it is expected to weigh much less than the current car, which, in 528i Touring guise with an automatic transmission, tips the scale at over 3,800 pounds. It is also expected to have the latest in driver-assistance technology. Despite the weight savings, and judging from the photos, it looks to have proportions similar to the current car, but don't expect the makeshift headlight and taillight clusters to make it onto the production model.
The crucial question for potential Touring customers in the United States is whether BMW will do the unexpected and import it here. The company's track record indicates that it will be sold in Rest of World markets only, but we're hoping that the next 5 Series will end the Touring's U.S. hiatus (and the 5 Series Gran Turismo's reign), which began in 2003 at the end of the E39 generation.