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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.

BMW i3 REx can be hacked to offer more miles, AM radio

If you're a BMW i3 REx owner who's willing to risk voiding your warranty, there's a low-level hack that offers up an interesting question. Which is worth more, an extra 20 miles or so of range from the gas-powered range extender or the ability to listen to local sports, like, for example, the iconic Vin Scully on Los Angeles Dodger broadcasts? The choice might be easy for Dodger fans, but it could be a bit more challenging anyone ready to make a road trip. The i3 REx is considered a zero-emissions vehicle under the odd rules from the California Air Resources Board (an important category for automakers) because the miles provided by the gas-powered range extender are about equal to the single-charge range of the vehicle's battery, Green Car Reports says. Some enterprising folks have figured out how to modify the software to tweak the car's capabilities. That means that instead of being able to put in only 1.9 gallons of fuel at a time into the tank, you can put in 2.4 gallons, allowing for that extra 20 miles of driving range. Additionally, the i3 REx's software suppresses AM radio because of potential electromagnetic interference from the electric drivetrain. But, again, that can be reversed with a few tweaks to the software. We need to give out a warning, though: messing with these sorts of software settings is a good way to void your warranty. So, if you're in LA and thinking about enjoying that Dodger (or, dare we say, Giant) broadcast and a few extra driving miles, make sure to figure in all of the factors. Related Video: Featured Gallery BMW i3 Coupe Concept: LA 2012 View 18 Photos News Source: Green Car Reports Green BMW Electric California warranty range extender software

Mini has become the Rover that BMW always wanted

BMW has been working for 20 years to build a successful line of British cars, and on the evidence of the second-generation Mini Clubman, it may have finally done it. That means it's time for all of us to get used to the fact that Minis aren't going to be that small anymore. Case in point is this new Mini Clubman, introduced last month and conspicuous by its size. Many of us who've pointed to BMW's stewardship of Mini as an example of retro done right bemoaned the Countryman subcompact SUV – a concept actually ahead of its time. The Coupe and Roadster, perhaps rightfully, deserved (and received) an eye roll. But now there's a so-called four-door hardtop that went on sale this year and this forthcoming, six-door Clubman that approaches the compact hatchback class in size. These vehicles actually look like practical moves at keeping buyers from defecting to larger cars made by someone else, rather than vain attempts at maximizing investment in a set of parts. And in an interesting twist, Mini is turning into one of its ancestors – minus the feeling of inevitable doom. Many of us were led to believe somewhere since Mini's relaunch about 15 years ago that the brand would be a stepping stone into the greater BMW fold. But in reality, it's done exactly the opposite, creating a parallel brand for those not willing to embrace the BMW image, but leaning heavily on British nostalgia. That was sort of the reasoning used when BMW pulled the Rover Group of England away from a fruitful partnership with Honda in 1994 and absorbed it all. In the consolidate-or-die '90s, it made sense. BMW had a small, but successful, line of sedans. Rover had no success outside of Western Europe (its last US attempt at selling cars, the Sterling, ended three years earlier). Yet its Land Rover line of SUVs was just right for the time and the 35-year-old Mini still had image-conscious clout. With every passing day, the brilliance of BMW's move to abandon Rover in 2000 seems brighter. Even ditching Land Rover made sense in the long run (and probably saved Jaguar in the process). With every passing day, the brilliance of BMW's move to abandon Rover in 2000 seems brighter. During a chat with Mini USA VP David Duncan this summer, it became clear the Mini of the past is probably gone. A small, city-sized Mini is not necessarily off the table, but larger and more profitable models are coming first.