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Alpina B4 coupe will be your subtle M4

We're big fans of Alpina here at Autoblog - the BMW tuner has created some seriously delicious products in the past, and recently tuned the diesel-powered 3 Series wagon to create the D3 Bi-Turbo. What we like most about Alpina is how the cars only look subtly more aggressive than stock, yet they pack a real wallop under the hood.
Take this B4 Coupe, recently spotted testing at the Nürburgring. It looks pretty tame compared to the normal 435i, the only visual additions being the Alpina-standard 21-spoke wheels, modified front lip and rear wing spoiler. But under the hood, Alpina is reportedly working on a tuned, twin-turbo straight-six that produces something like 410 horsepower. That means the B4 should be good for a 0-62 time of 4.2 seconds, with a top speed around 190 mph. Rear-wheel drive will be standard, though our spies suggest that Alpina could also use all-wheel drive here in the B4.
We have no doubt that the next BMW M4 will be super hot, but for those seeking a bit more stealth and exclusivity, this Alpina B4 certainly looks the business. Check it out in our gallery above.

2015 BMW X3 gets a new nose, diesel power

The second-generation BMW X3 launched in late 2010, and while it's never really wowed us, it's still a solid offering in a highly competitive class. In an effort to keep things fresh, BMW has given its X3 a nip/tuck for the 2015 model year, but perhaps the biggest news (for the US market, anyway) involves what's found underhood.
In addition to the 2.0-liter turbo-four and 3.0-liter turbo-six, BMW will now offer an X3 xDrive28d, fitted with - you guessed it - the 2.0-liter turbodiesel inline four-cylinder engine found in the 328d sedan. Output for this engine is rated at 180 horsepower and 280 pound-feet of torque, and BMW says this oil-burning mill will help the X3 reach 60 miles per hour in just under eight seconds. The automaker hasn't released any information about real or predicted fuel economy figures for the diesel X3, as yet.
What's more, BMW will once again offer a two-wheel-drive X3 in the States - the sDrive28i. Pricing for the refreshed 2013 X3 starts at $39,325, not including $925 for destination. Opting for that diesel will set you back $42,825. Scroll down for the official press release, and check out a new brace of shots live from the soft-roader's Geneva Motor Show debut.

NHTSA urges owners of recalled Takata airbag vehicles to take immediate action

The National Highway Traffic Safety Administration and the Department of Transportation are taking the unusual step of issuing a followup press release urging owners of certain recalled vehicles "to act immediately" to fix their cars and trucks. The problem in question concerns the repair campaigns for rupturing Takata airbag inflators issued in June and covers a long list of models from Toyota, Lexus, Honda, Acura, Mazda, BMW, Nissan, Infiniti, Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac.
While NHSTA doesn't specifically say why the recall is vital in the new release, Toyota's own explanation in its newly announced renotification campaign earlier today sheds some new light on the topic. According to the Japanese automaker, in testing, Takata found a possible link between the rupturing airbag inflators and high humidity. NHTSA is advocating that all owners pursue repairs immediately if they haven't already done so already. This is especially crucial for those drivers especially in Florida, Puerto Rico, Guam, Saipan, American Samoa, Virgin Islands and Hawaii because of the humid conditions there.
We don't need to tell you how dangerous an inadvertent airbag deployment could be - even in a stationary vehicle - but adding to the Takata issue is fears that the deployment could lead to shrapnel being sprayed into the cabin.