2000 Bmw M5 Carbon Black Metallic on 2040-cars

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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.

First Ride: 2015 BMW M3 and M4

Getting Our Butts In The Seats
Both the non-M BMW 3 Series sedan and 4 Series coupe have so far brought much pleasure to us at Autoblog. The terrific four-cylinder 328i trim has become our favorite of the 3 Series line, while we have yet to get a chance at the 428i coupe. That said, the 35i trim powered by a 3.0-liter TwinPower Turbo inline six-cylinder engine is not exactly to be sniffed at.
We all know the ones you're really waiting for, though. The F80 fifth-generation M3 sedan and the supremely sexy F82 M4 coupe. Rumors have been buzzing for a couple of years now that the engine would be another V8, only turbocharged this time, or else a tri-turbo six. Well, today BMW confirmed that the mill under the hood's power bulge is a 3.0-liter inline six-cylinder TwinPower Turbo of the biturbo variety, referred to internally as "S55B30 variant."

BMW mulling potential 9 Series production

Nine months may be long enough to bring another human being into the world, but it may take BMW a bit longer to make up its mind on the production of a potential 9 Series model. The idea was first mooted when the Bavarian automaker presented the Vision Future Luxury concept at the Beijing Motor Show last year. Billed (not unlike rival Audi's Prologue concept) more as a design study than a pre-production concept, the Vision Future Luxury show car nevertheless took a larger form than the 7 Series, prompting speculation that a new flagship sedan could be in the works. The better part of a year later, such a decision has reportedly yet to be taken, but over at BMW Blog they're reporting that the automaker's incoming chief executive Harald Kruger is a fan of the idea and could give it the green light after he takes the helm in May. If approved, the model likely to be dubbed 9 Series would reportedly compete with the Mercedes-Maybach S600 – but then that model was earmarked to take on the Rolls-Royce Ghost. BMW has typically been careful not to overlap with its Rolls-Royce division, but considering how it's also been going downmarket with front-drive models to close the gap to the Mini brand, we wouldn't be all that surprised to see the 9 Series positioned maybe just below the next-generation Ghost and developed alongside it, taking a page out of rival VW's playbook. Volkswagen has, after all, made a brisk business out of sharing platforms and slicing market segments between the various brands under its umbrella. And while BMW is nowhere near as large, its new leadership could find new ways to increase its market share.