1976 Bmw 2002 Base Coupe 2-door 2.0l 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.

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Discussion Topics for Autoblog Podcast Episode #334
2014 Mercedes Benz S Class

2014 BMW X5

Is Better Than Ever Still Good Enough?
By now, all but the staunchest of traditionalists have moved past the shock and horror of seeing their favorite automotive brands branching into categories and segments that break with their previously accepted norms. In other words, you and I don't really care all that much if the BMW M3 is powered by an inline six or a V8, or whether it boasts a turbocharger, just so long as the end result is an awesome car. Similarly, we don't get all hot under the collar seeing that same M3 share space on the showroom floor with a brace of SUVs and crossovers... or, as BMW continues to insist, Sports Activity Vehicles.
Time, as they say, heals all wounds, and the BMW X5 has been around long enough, having first seen the light of day in 1999, that anyone offended by its existence has since gotten over it. Plus, the X5 is a legitimately nice vehicle to drive, offering such desirable qualities to family men and women as seating for up to seven, all-wheel drive and a commandingly tall view of the road. For the enthusiast set, the X5 serves up a taut chassis and powerful engine options.