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2015 BMW M3 Sedan, M4 Coupe are officially revealed [w/video]

The new 3.0-liter inline-six makes 425 turbocharged horsepower from 5500 rpm all the way up to 7300 rpm.
BMW has announced the 2015 M3 Sedan and M4 Coupe, high-performance versions of the new 3 Series and 4 Series that launched this year. The new Ms have stirred controversy in a variety of ways, but one must remember that the M cars traditionally don't follow a specific mold.

Alpina Edition 50 models boast 204-mph top speed, company's most-powerful V8 ever

The folks at Alpina bridge the gap between a full factory outfit and traditional tuners. It currently only builds around 1,700 cars a year, but you're not going to find any massive rear wings or garish paint from the company. Instead, the business has been perfecting how to make BMWs better for the last 50 years and has decided to celebrate with its most powerful road model yet. For the Edition 50 models, Alpina is crafting 50 sedans or wagons and 50 coupes for European buyers based around its B5 Bi-Turbo and the B6 Bi-Turbo, respectively. The real birthday present is the upgraded, twin-turbocharged 4.4-liter V8 under the hood. It makes 591 horsepower and 590 pound-feet of torque, a bump of 59 hp and 52 lb-ft from the regular versions. The extra grunt comes thanks to additions like an optimized intake, water-cooled intercoolers near the turbos, lightweight pistons and a titanium exhaust. Alpina claims that these celebratory vehicles can get to 62 miles per hour in 4.2 seconds and a top speed of 204 miles per hour. Beyond just the major improvement in power, these special vehicles wear Alpina's more aggressive, though still understated body kit. They also ride on an updated version of the company's famous wheels that feature added side cuts on the multiple spokes to reduce weight. These exclusive cars are only available in Alpina's own shades of green and blue, plus a special color called Edition 50 Sepia from BMW Individual. There are also special logos on the seatbacks and center console to further promote the models' limited nature. Celebrating the brand's birthday in one of these high-speed vehicles retails for 86,850 pounds ($130,000) for buyers in the UK. NEW 204 MPH SUPERSALOON CELEBRATES 50 YEARS OF ALPINA ENGINEERING EXCELLENCE 26/03/15 Extensively revised V8 is the most powerful roadcar engine in the company's history Nottingham - Bespoke car manufacturer ALPINA will create 50 remarkable saloons (or estates) and 50 similar coupes to celebrate the company's half century this year. Based on the B5 Bi-Turbo and the B6 Bi-Turbo respectively, each vehicle will include hand-crafted Edition 50 body and trim features and a remarkable, heavily revised V8 that will propel the luxury five seater from 0-100 km/h (62 mph) in 4.2 seconds and on to a top speed of 204 mph. ALPINA's fifty year heritage includes the creation of some of Europe's most highly-regarded luxury performance road cars and iconic race cars including the legendary BMW 3.0 CSL.

Weekly Recap: Toyota wants cars to be your 'close friends' around 2020

Toyota confirmed plans this week to launch autonomous technology in its production cars around 2020. The automaker's version is called Highway Teammate, and it's one element of a broader mobility strategy that includes vehicles communicating with each other and the grid. "Toyota believes that interactions between drivers and cars should mirror those between close friends who share a common purpose, sometimes watching over each other and sometimes helping each other out," the company said in a statement. That sounds utopian, and perhaps a bit cheesy, but it's an acknowledgment that autonomous driving requires more than technology developed in a vacuum. Toyota is looking at its research in a broader context, and dubs its overall strategy the Mobility Teammate Concept. Highway Teammate is the first step. Its test vehicle is a modified Lexus GS, which uses road-mapping data and external sensors to merge or exit highways, change lanes, and maintain safe distances during driving. It's operated on the Shuto Expressway in Tokyo. Toyota has been working on autonomous tech since the 1990s, with the goal of providing mobility for older people and the disabled, as well as lowering the frequency of traffic accidents. Toyota's push comes as an early adopter, Nissan, is hedging on its own deadline to implement the autonomous tech by 2020 due to a lack of firm laws governing self-driving cars around the world. Conversely, Volvo took the landmark step of being the first automaker to accept liability for when its cars will operate in autonomous mode, and urged the US government to set federal guidelines to regulate the technology. OTHER NEWS & NOTES 2016 BMW M4 GTS: Your water-injected, turbo-boosted demon BMW is unleashing its most powerful M4 ever, a 493-horsepower special edition that's road legal yet bred for the track. The company is making 700 copies for sale around the world, and 300 of them will come to the United States. The twin-turbocharged 3.0-liter six-cylinder revs to 7,600 rpm and uses a water-injection technology to cool the intake air and lower the compression temperature. BMW says this allows it to wring more power out of the inline six. The car also uses carbon-fiber reinforced plastic for the roof, hood, engine compartment strut brace, drive shaft, and rear spoiler to reduce weight. The M4 features BMW's organic light-emitting diode taillights, which are said to be an industry first.