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BMW M4 Convertible spied with naked top and trunk

Our trusty spy photographers have been at it again, snagging these first images of the forthcoming BMW M4 Convertible without camouflage on its retractable roof and rear deck. You'll recall that this is not the first time we've seen the followup to the M3 Convertible, but that the last batch of images we had were encumbered by a lot more camouflage - this car is virtually naked by comparison.
Not surprisingly, the M4 looks to share its folding hardtop design with the standard 4 Series droptop, and it should operate in a similar manner as well. It's no surprise, but it looks like BMW is going to try and make the transition from M4 Coupe to M4 Convertible as effortless as previous efforts converting the M3 to an M3 Convertible. That should mean that below the beltline, this car is nearly identical to the coupe we saw in Detroit.
As for the camo'd features on these spy photos, the hood, front fascia, rear fascia, quarter panels, side sills and mirrors have all been shown on the M4 Coupe, and don't really bear mentioning. There's been no word of just where the M4 Convertible will make its debut, although considering the lack of disguise on this car, Geneva seems like a likely destination.

BMW i creates high-design solar charging carport

With the first deliveries of the i3 under way, and the recent i8 press launch, the marketing push in the US for the BMW electric sub-brand has begun. These i vehicles are supposed to have a completely different feel from the rest of the brand's lineup. To complement their earth-friendly ethos, the Bavarian company commissioned BMW Group DesignworksUSA in California to create a solar carport concept that could keep the models sustainably topped up on power. It premiered alongside the i8 in Los Angeles at the electric sports coupe's media launch.
At first glance, the BMW i Solar Carport Concept looks like a pergola from a winery or a well-groomed garden, but like the i vehicles, the deeper you look, the more high-tech features there are. The sides feature carbon elements in a similar way that the i3 and i8 have a carbon fiber-reinforced plastic body. Bamboo forms the uprights because its quick-growing nature makes it rather sustainable, and the solar panels are strung along the top to harness energy.
Obviously the sun can't provide all of the energy that the electric cars need, and a BMW Wallbox Pro charger is also connected to the power grid as a supplement. It includes a readout telling users the amount of solar energy versus municipal electricity it's using.

BMW M4 Coupe laps 'Ring in 7:52, bests outgoing M3

Comparing Nürburgring Nordschleife lap times is a bit of a black art, especially when looking at times officially set by manufacturers matched against other sources. Driver skill and weather conditions play a huge roll in determining a quality time. Still, it appears BMW fans have reason to celebrate because the new M4 Coupe beat the previous-generation M3 by 13 seconds in a recent test by Germany's Sport Auto magazine.
Sport Auto conducts what it calls the Supertest, where it runs performance cars around the 'Ring and the short course at Hockenheim to create its own database of comparable times. The M4 with a dual-clutch transmission, ceramic brakes and Michelin Pilot Supersport tires managed a quality 7 minutes 52 second lap around the 12.8-mile course, compared to 8:05 from the last M3, according to BimmerPost. The new coupe also beat the magazine's posted times for the Audi RS5 Coupe, which did it in 7:59, and Mercedes-Benz C63 AMG with an 8:01, but couldn't quite match the 7:44 set by a 911 Carrera S. Still, BMW must be somewhat pleased with these results of its new 425-horsepower coupe because it posted the magazine's cover and an image of the time on its official M Facebook page.
While the M4 apparently stands up to contemporaries and predecessors, new generations of the AMG and RS models are reportedly on the horizon. In other words, more tests will come.