2007 Bmw X3 Midsized Suv 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.

Petrolicious reconnects with the BMW M coupe

With the look of a clown shoe on wheels, the BMW M Coupe was a product of using what was around to create something great. Starting with the Z3 convertible, BMW's engineering team added a bulbous roof to improve rigidity, and for the M version, it dropped in the inline six from the contemporary M3. While the result wasn't a beauty queen, the car more than made up for any aesthetic complaints in driving pleasure. Petrolicious talks to owner Alex McCulloch about just what makes the tiny three-door so special in its latest video. With a fairly short wheelbase, plenty of power, and a rear suspension from the E30-chassis BMW 3 Series, the M Coupe can be a quite handful at the limit. "I used to say it wanted to kill me, but now we've reached an agreement where it's not quite as murderous," McCulloch says. He's eventually found that the only real way to exploit the coupe to its fullest is on the track, where he competes in time trials. To get lap times as low as possible, the BMW now wears quite a few mods, but McCulloch says that it's all reversible. Figure out what competitive hang gliding has to do with driving in this clip from Petrolicious. Related Video:

2017 BMW Alpina B7 xDrive is an M7 by any other name

Have you been waiting for BMW to release a more potent version of the new 7 Series? Try 600 horsepower on for size and forget all about the famous M badge. The new flagship performance sedan from Munich is the 2017 BMW Alpina B7 xDrive. Alpina is Bimmer's tuner of choice, and it designs customized features to integrate precisely with the factory build. The B7's 4.4-liter twin-turbocharged V8 is massaged to deliver a nice, round 600 horsepower, and a torque figure nearly as impressive at 590 pound-feet available from just 3,000 rpm. All that muscle is channeled through an eight-speed automatic to all four wheels (as you might have guessed from the new xDrive handle). The result is an Autobahn-blitzing 0-60 time quoted at just 3.6 seconds – 0.8 seconds quicker than its predecessor – and a top speed estimated at 193 miles per hour. Those would have been considered supercar figures not that long ago, but are delivered here in a luxury sedan as big as they come. They also stand up pretty well to the forced-induction eight-cylinder competition in the Audi S8 Plus, Jaguar XJR, Maserati Quattroporte GTS, and Mercedes-AMG S63. The Audi produces a bit more power but less torque, the Mercedes does the opposite, and the Jaguar and Maserati are left in the dust. Only the S8 Plus dares claim a quicker 0-60 time, and even then it's only said to be a tenth quicker. (The Mercedes-AMG S65 boasts much higher output from its V12, but without an all-wheel drive system capable of handling all its muscle, it's a fair bit slower off the line.) Keeping all that momentum under control is an air suspension with adaptive dampers, active roll bars, and four-wheel steering. It's all mounted to 20-inch wheels wearing Michelin Pilot Super Sport rubber and packing oversized brakes measuring 15.5 inches at the front (with four-piston fixed calipers) and 14.5 inches (with floating calipers) at the back. Of course it also benefits from all the advancements that the Bavarian automaker developed for the latest 7 Series, but takes things a step further with a specific aero kit and an interior decked out in even more upscale leather and trim. The finished product may not wear an M7 badge as so many have called for from BMW's flagship sedan series over the years. But the Alpina name carries a cachet all its own and has for the past 50 years now – which is a few years longer than BMW M GmbH has been around.