1998 Bmw Z3 M Roadster Convertible 2-door 3.2l 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.

2014 BMW 5 Series starts at $50,425* and gets a new diesel, 5 Series GT starts at $60,925* [w/video]

BMW itself says it is making "Precise modifications to the design" of the facelifted, sixth-generation 5 Series, and this is the result. The 2014 5 Series will come in four flavors - sedan, Touring, Gran Turismo and ActiveHybrid 5 - the biggest news probably the addition of a diesel engine for the US market.
When they go on sale in August, the 528i sedan will start at $50,425, a $1,700 increase over the 2013 model, and if you want xDrive that adds $2,300 to the price across the model range. The 535d employs a 3.0-liter twin-turbo inline six-cylinder diesel with 255 horsepower and 413 pound-feet of torque and starts at $56,025. BMW portends "substantial fuel efficiency gains over its gasoline-fueled counterpart," but the exact numbers won't come until closer to the on-sale date. The $64,825, top-dog 550i holds pat with 4.4-liter, twin turbo V8, with output upped to 445 hp and 480 lb-ft - an increase of 45 hp and 30 lb-ft of torque. The outputs haven't changed on the twin-turbo four-cylinder in the 528 nor the 3.0-liter six-cylinder gasoline engine in the 535, and *all prices include the $925 destination charge. The engines are also fitted with a coasting mode that uncouples the powertrain when rolling downhill.
Outside there are new "contour lines" for the grille and air intakes, slimmer taillights and elements that accentuate the car's width - as if that were necessary. Xenon adaptive headlights will be standard along with side indicator lights on the rearview mirrors, the options list adds LED headlights, the Luxury Line and Modern Line packages. The former package adds chrome trim to certain exterior elements, the latter adds matte chrome trim.

BMW i8 pitted against M4 in sibling rivalry track battle

We recently watched Auto Bild challenge the BMW i8 against the M4 in a German drag race of decide the quicker of the inter-brand rivals. The hybrid took a commanding victory in that fight. However, Autocar now has a new battle for the two coupes. The siblings are together again on the Castle Combe Circuit to find out which of them offers the more enjoyable experience at the track. Unfortunately, we don't ever get a perfect point of comparison in the video because host Steve Sutcliffe never does a full lap in anger with either of them to set a time. Instead, he focuses more on how the BMWs feel behind the wheel. Sutcliffe also admits midway through the clip that the i8's electric motor is out of juice to power the front axle's electric motor. That only leaves the hybrid with its 228-horsepower and 236-pound-feet-of-torque turbocharged three-cylinder to spin the rear wheels. Still, Sutcliffe spends ample time explaining the benefits and downfalls of driving these coupes. See where his opinion falls between the M4 as the traditional German sports coupe and the i8 as the new-school hybrid in the video, above.