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BMW i3 takes to the track, circles it in a way you don't expect

So, who wants to see a BMW i3 race around a track. That's what we thought. It's not a long video, but it is entertaining, and the way the urban EV does a 'loop' at second 25 certainly caught out eye. The i3 is scheduled to go on sale in the US later this year and will start at $41,350. The diminutive electric vehicle has a top speed of 93 miles per hour and can hit 62 mph in 7.2 seconds. We found it a hoot to drive, but we're not sure if hardcore BMW performance fans will totally 'get' this car's performance. The i3 is great at what it does, but it wasn't born to hit the race track. After seeing this video, though, we want a crack at it, skinny wheels and all. You can get a behind-the-scenes glimpse here, where Chris Neff writes, "The i3 basically turns in on itself. This is one sharp turning radius, take a look at 24 seconds into the video. We were actually trying to get the i3 to do doughnuts, but the computer would not let the rear brake loose, still, you can see how it held and how sharp we were turning....about 27 times in a row." Watch all 49 seconds below. And wonder with us if whatever aerial device was used to get the shot that ends at four seconds in was destroyed just after the video cuts away.

Researchers halfway to cutting carbon fiber costs by 90%

Carbon fiber has been utilized for decades to build racecars, as a means to cut weight while maintaining strength. But until recently, the space-age material has been largely absent from the street on anything but supercars because of the expense to use it. Recently, BMW signaled a major shift in that trend when it starting using carbon fiber reinforced plastic panels on the i3 and i8. This relatively small scale start might be just the beginning; the German company believes that a breakthrough to inexpensively manufacture the lightweight stuff is just on the horizon.
MAI Carbon Cluster Management GmbH counts BMW, Audi, Airbus, the German government and many other organizations as supporters, and it's researching how to make carbon fiber cheaper to produce, according to Automotive News Europe. The company thinks it can reduce costs by 90 percent in the near future. "We've certainly reached a halfway point on our cost-cutting target for suitable carbon-fiber parts," said project head Klaus Drechsler to Automotive News Europe.
Unfortunately, it isn't entirely clear just what MAI Carbon is doing to make such a huge leap possible. However, a recent post on the company's website talks about a new form a carbon fiber using a thermoplastic matrix that could be cured in less than three minutes. That's compared to about 90 minutes in the traditional process with an autoclave.

Next BMW 4 Series convertible may ditch folding hardtop

In 2007 the E93 BMW 3 Series convertible switched from a fabric roof to a folding hardtop, but reports out of Germany and BMW say that the next-generation 4 Series convertible will go back to a fabric roof. AutoBild disclosed that nugget last month, now BMW Blog says a BMW source told their sister German publication BimmerToday that it's official and "a decision has already been made." The official car of pro tennis clubs around the world, the droptop 4 Series isn't due in dealers until 2020 or 2021 so one would think there remains some leeway about the top. However, teams of designers are working on the new car right now, so it's entirely possible that a design course is fixed. From the time that the model made the switch, fabric roofs have got so good that there is barely, if any, penalty for using them. It's supposed the change is being made to save weight and free up space. The next 4 Series range is aiming for a lot more sportiness, so on top of its CLAR (cluster architecture) body, it's expected to get active steering, adjustable dampers and anti-roll bars, bigger brakes, and brake-based torque vectoring. Detail improvements like reduced-friction wheel bearings, and faster torque transfer for its all-wheel-drive system are on the long list of upgrades. So too are aluminum and carbon fiber wheels, which will likely be developments based on the carbon wheels BMW showed off last year. Driver assistance options will be legion, with remote-controlled parking, semi-autonomous driving up to 40 mph, and hands-free overtaking perhaps among them.