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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.

Recharge Wrap-up: Hyundai/Kia fined $755M for exaggerated MPG ratings; BMW dealers want more i8s

The fine against Hyundai and Kia has grown to $755 million for overstating fuel economy ratings. $360 million of that fine comes from the EPA for violation of the Clean Air Act: $100 million is a civil penalty, $210 million is a forfeiture of greenhouse gas credits and another $50 million will pay for independent fuel economy audits on future models. The remaining $395 million is a settlement for customers who purchased the affected vehicles. A slew of 2011 to 2013 models were found to have fuel economy ratings overstated by one to six miles per gallon. Customers will be awarded funds to offset the unexpected fuel costs or to put toward a new Hyundai or Kia vehicle. Read more at Hybrid Cars. BMW dealers are awaiting details on new dealership standards - and BMW i8 models for their showroom floors. According to BMW National Dealer Forum Chairman Steve Late, BMW dealers are anxiously waiting to see what sort of updates they'll need to do to get in line with BMW's Future Retail 2016 program. As for the new EVs, Late says that the BMW i3 sales were slow to start, but that once people learned more about it, "wham, bam, it is taking off." The i8 shortage is a bigger problem: "I was allocated three for 2014, and I have a waiting list of 47 people. This year, maybe I will get eight or 10, and I still won't be able to fulfill them." Still, Late says he won't sell the cars at an upcharge. Read more at Automotive News. Opel is reportedly planning an electric version of its Karl hatchback. According to German automotive magazine Autobild, Opel will begin selling the diminutive Karl EV by the end of 2018. The electric car will offer a driving range of about 93 miles. The gasoline-powered version is expected to begin deliveries this June. Read more at Automotive News Europe. PSA Peugeot Citroen says it will keep its Hybrid Air program alive as it looks for a cost-sharing partner. Hybrid Air technology uses a compressed air hybrid system to improve fuel economy as we saw in the Peugeot 208 Hybrid Air concept. A French newspaper reported that Hybrid Air won't make it to commercialization, and that the program's team of engineers has been reduced. A PSA spokesperson confirms the change to the program, saying, "We are now waiting for another partner to help us begin the production stage." Read more at Automotive News Europe. Related Video:

Which car should win 2015 World Green Car of the Year?

There were three finalists for the World Green Car of the Year announced about a month ago at the Geneva Motor Show: the BMW i8, the Mercedes-Benz S 500 Plug-In Hybrid and the Volkswagen Golf GTE. With the New York Auto Show upon us and the winner scheduled to be announced tomorrow, we thought it's high time to ask our readers which one should win. There were seven other vehicles named to the finalists list: the Hyundai x35/Tucson Fuel Cell, the Volvo XC90 T8 Twin Engine, the Audi A3 Sportback E-Tron, the BMW X5 xDrive40e, the Kia Soul EV, the Nissan e-NV200 and the Opel Adam 1.0 Direct Injection Turbo ecoFLEX Start. Would you have named one of these to the top three list instead? POLL 14386429 Green BMW Mercedes-Benz Volkswagen 2015 ny auto show world green car of the year vw golf gte