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2015 BMW M4 Convertible is here to put wind in your sails

Each generation of the BMW M3 has included a convertible model. Even the distant E30, the patriarch of the M3 line, had an ultra-rare (only 787 were built) droptop model. The convertible became more common on the successive generations, with the hardtop-convertible E93 being the most recent. Considering this history, there seemed very little doubt that as the M3 became the M4, a convertible would be in the cards. Now, the new droptop has arrived.
Set for its global debut at the 2014 New York Auto Show, the 2015 BMW M4 Convertible features, like its forbearers, everything that's great about the hardtop variant while adding an unlimited amount of head room. That means the same 3.0-liter, 425-horsepower, 406-pound-foot, twin-turbocharged straight six sits under its domed hood, while either a six-speed stick or a seven-speed M dual-clutch transmission dispatches power to the fat rear tires.
As for specific differences between the hardtop and the new convertible, obviously, the droptop is heavier. A lot heavier. Where an M4 with a six-speed manual tips the scales at 3,530 pounds, the M4 Convertible weighs in at 4,055 pounds. Believe it or not, BMW has actually trimmed 90 pounds from the last-generation M3 convertible, code-named E93. This marginal weight reduction from the third-generation convertible to the fourth is barely half of the 174 pounds BMW was able to subtract when transitioning from M3 Coupe to M4 Coupe.

Rolls-Royce Cullinan and BMW 8 Series spied south of Death Valley

Recently, we've stumbled upon a number of manufacturer prototypes running around. Usually, spy photographers sit and wait for hours with cameras primed in order to get a few shots of a car. We just got lucky. First, we caught the new Chevy Corvette ZR1 convertible during a Facebook Live video. A week or so later McGraw snapped a video of a ZR1 coupe cruising in his neck of the woods. Today, our ace photographer Drew Phillips caught a BMW test fleet filling up the new Rolls-Royce Cullinan and 8 Series coupe in Baker, Calif. Baker sits along Interstate 15, about halfway between Los Angeles and Las Vegas. It's just south of Death Valley, and, being late August, suggests that BMW was doing some hot weather testing. Drew was filling up his car when the fleet rolled in. There were at least two of the new king Rolls and a single 8 Series. Both cars were wearing a full swirl camouflage wrap. It's not an uncommon place to see prototypes. Still, seeing a whole fleet roll in is quite a sight. We've seen official photos of the Cullinan before, but these pictures give us our best view of the profile and rear we've had so far. From a distance, it looks like a high-riding version of the new Phantom with a hatch in place of the trunk. The taillights are obviously just filler units. Expect the final version to look very much like the squared off LED units on the Phantom. Likewise the interior and engine should be straight from the Phantom. That means a twin-turbocharged V12, though power is likely to be sent to all four wheels. We've seen the full BMW 8 Series concept a few times now. The proportions on the production car look the same, with a long hood and even longer wheelbase. The nose isn't quite as aggressive as the concept, but we expected the styling to be toned down to meet crash and safety standards. As for engines, look for six, eight and (hopefully) 12-cylinder power under the hood. A plug-in variant is also expected. Both cars have been in development for a long while, so look for full debuts sometime this auto show season. Maybe we'll happen upon some more test mules between now and then. Related Video:

BMW Hack: the auto industry's big cyber-security warning sign [w/video]

A cyber-security hole that left more than two million BMWs vulnerable may be the most serious breach the auto industry has faced in its emerging fight against car hackers. Security experts are not only concerned that researchers found weaknesses inside the company's Connected Drive remote-services system. They're worried about how the hackers gained entry. German researchers spoofed a cell-phone station and sent fake messages to a SIM card within a BMW's telematics system. Once inside, they locked and unlocked car doors. Other researchers have demonstrated it's possible to hack into a car and control its critical functions, but what separates this latest exploit from others is that it was conducted remotely. In an industry that's just coming to grips with the security threats posed by connectivity in cars, the possibility of a remote breach has been an ominous prospect. The fact it has now occurred may mean a landmark threshold has been crossed. "It's as close as I've seen to a genuine, remote attack on telematics," said Mike Parris, head of the secure car division at SBD, a UK-based automotive technology consulting company. "At this point, the OEMs are trying to play a game of catch up." Previous researchers in the automotive cyber-security field have launched remote attacks that are similar in nature, though not the same. In 2010, academics at California-San Diego and the University of Washington demonstrated they could remotely control essential functions of a car, but they needed to be within close proximity of the vehicle. In November 2014, researchers at Argus Cyber Security remotely hacked cars with an aftermarket device called a Zubie plugged into their diagnostic ports. But the remote attack was predicated on the Zubie dongle having physically been installed in the car. With the BMW hack, researchers compromised the car without needing physical access or proximity. The German Automobile Association, whose researchers conducted the BMW study, said it infiltrated the system "within minutes" and left undetected, a feat that raises the possibility that a hacker could do the same in a real-world scenario. Messages Were Sent Unencrypted Security analysts described the BMW infiltration as a "man in the middle" attack. Researchers mimicked a cellular base station and captured traffic between the car and the BMW Connected Drive service, which drivers can access and control via an app on their cell phones.