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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.

Is BMW ready to increase i8 production?

The BMW i8 plug-in hybrid is really fast. But the car is getting to customers really slowly. The German automaker might be doing something about that. Bimmer executive Ian Robertson, speaking with reports at the Los Angeles Auto Show this week, commented on the high demand for the super-PHEV and said the company may step up production in Germany, Automotive News Europe says. That's because the wait list for the i8 is approaching 18 months in some global markets. And Robertson would like to get that timeframe down to about six months. No details were disclosed about how fast the i8 is being produced or how much faster that production rate may get. The i8, which retails for about $135,000, started sales in Europe in June and in the US two months later. As for the smaller, slower i3 electric vehicle, BMW is making about 2,000 units a month, and wait lists are down to about four months. Part of the reason for that is because BMW shifted distribution rates for that model towards the US to meet higher-than-expected demand from stateside consumers and slow German sales. Through the end of October in the US, BMW had sold almost 4,300 i3 vehicles and 271 i8 models, including 204 i8 units last month alone.

BMW 1 Series dead for 2014

BMW is temporarily abandoning the increasingly competitive and popular compact luxury segment, as it's announced that its 1 Series Coupe and Convertible will be discontinued for the 2014 model year, marking an ignominious end to a line that spawned a pair of excellent high-performance models during its life. Production on the Coupe officially ended in August, while convertible production was taken offline in June.
And while we're mourning the loss of the 1 Series, we're left wondering about the status of its replacement, the 2 Series. That car, which we've already seen inside and out and know the specs on, is expected to make its debut at the 2014 North American International Auto Show in Detroit, although it's unclear just how quickly BMW will get it to showrooms. Assuming BMW doesn't have a bumper crop of already-built 2013 models to hold them over, that leaves Munich-based manufacturer somewhat vulnerable, particularly as Audi and Mercedes-Benz are both launching new models in the compact-premium space vacated by the 1 Series. Any delay in the arrival of the 2 Series could be bad news for BMW, especially if the public is receptive to the new Audi A3 and CLA-Class (early signs suggest that the baby Benz has traction).
In addition, BMW has made a number of changes across the rest of its lineup which are listed below in the official press release. Some of the notable changes, though, include a revised 445-horsepower twin-turbocharged V8 on the 5 Series, a limited-edition Frozen Brilliant White Edition for the 6 Series and the rollout of a new, touchpad-equipped version of iDrive on a number of BMW models. Scroll down for the full press release from BMW.