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2015 BMW X6 stays the course with more power, RWD model

What would this world be without the BMW X6? Oh, sure, the whole coupe-crossover design trend surely would have started somewhere, but BMW was the first, launching its odd duck back in 2008. Much as we like to harp on the X6 (for being less functional and more expensive than the X5 on which it's based), people around the world sure do seem to like the thing, BMW having sold some 250,000 examples since the CUV's birth. And as you first saw thanks to leaked images this morning, the second-generation X6 has just arrived.
The shape is familiar, as are specific styling elements like the larger headlamps (now available with a full-LED treatment) and taillamps, mimicking those found on the X5. Two trims are available - xLine and M Sport - the former taking a more subdued approach, while the latter uses the traditionally bulgy and aggressive M-badged kit, with larger air intakes and matte aluminum grille bars. All X6s come standard with 19-inch wheels, and 20s are optional.
Regardless of trim, BMW will now offer the X6 in three guises here in the United States: sDrive35i, xDrive35i and xDrive50i. Dissecting the nomenclature, that means the first two models will be powered by BMW's 3.0-liter turbocharged inline-six, good for 300 horsepower and 300 pound-feet of torque. The sDrive X6 uses rear-wheel drive, while the xDrive, of course, uses all-wheel drive. Moving up, the xDrive50i uses the same twin-turbo 4.4-liter V8 as its predecessor, though power has been increased to 450 hp and 480 lb-ft. All X6 models are fitted with an eight-speed automatic transmission, and BMW says that the new powertrains are more efficient than before, though official fuel economy numbers have not yet been released.

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.

Consumer Reports criticizes small turbo engines for misleading performance, fuel economy claims [w/video]

Consumer Reports has taken aim at at small-displacement, forced-induction engines, saying the powerplants don't manage to deliver on automaker fuel economy claims. Manufacturers have long held that smaller, turbocharged engines pack all power of their larger displacement cousins with significantly better fuel economy, but the research organization says that despite scoring high EPA economy numbers, the engines are no better than conventional drivetrains in both categories. Jake Fisher, director of automotive testing for Consumer Reports, says the forced induction options "are often slower and less fuel efficient than larger four and six-cylinder engines."
Specifically, CR calls out the new Ford Fusion equipped with the automaker's Ecoboost 1.6-liter four-cylinder engine. The institute's researchers found the engine, which is a $795 option over the base 2.5-liter four-cylinder, fails to match competitors in acceleration and served up 25 miles per gallon in testing, putting the sedan dead last among other midsize options.
The Chevrolet Cruze, Hyundai Sonata Turbo and Ford Escape 2.0T all got dinged for the same troubles, though Consumer Reports has found the turbo 2.0-liter four-cylinder in the BMW 328i does deliver on its promises. You can check out the full press release below. You can also read the full study on the Consumer Reports site, or scroll down for a short video recap.