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How to charge up your BMW i3 with a Honda

Behold a cheaper version of BMW's range extender for its i3 plug-in. And it's brought to you by ... Honda? Sort of, if you take the approach that Gadget Review took when it looked for an alternative to ponying up the $4,000 or so for the gas-powered i3 range extender that comes from the factory. What was procured was a Honda portable generator for Home Depot for the experiment, which involved gassing the generator up in a parking lot, plugging in the i3 and going out for a cup of coffee. The result was that, after about a half-hour of charging, the i3 picked up about four miles of driving range. Not exactly revolutionary but it least a bit instructive. And given that Honda generators start at about $800, the idea, while clunky, is potentially cash-saving. Gadget Review briefly took the experiment one-step further by trying to run the generator inside the back of the car and plugging in, complete with a rigged-up ventilation system, but the host thought better of it once he realized that there'd be suffocation involved. Why this was never tried on the Nissan Leaf, we'll never know. Check out Gadget Review's five-minute video below.

BMW to offer carbon fiber wheels in a year or two

The Citroën SM sat on the first set of production glass fiber and resin wheels in 1972 when parent company Michelin developed the exotic hoops in order to take the SM rallying. It wasn't until 2008 that we got the first all-carbon-fiber wheel for passenger cars in the form of a prototype model from Weds Sports in Japan that remained a prototype. Australian company Carbon Revolution followed that a year later with its CR-9 all-CF wheel, first introduced on the Shelby Ultimate Aero and now available for independent purchase for about $15,000 per set. BMW could be the first OEM to offer entire wheels in carbon fiber reinforced plastic in two years.
The wheels - either all-CFRP or using a CFRP rim and alloy spokes - were shown off during BMW's Innovation Days in Munich and are products of the development work done on its i-branded cars. The full-CFRP wheel is 35-percent lighter than a forged alloy wheel, the hybrid alloy and CFRP wheel is 25-percent lighter, making for a decent drop in unsprung rotating weight. As demonstrators during a tech day the wheels aren't yet in the pipeline for production and EU approval, but an article in Auto Express claims that they could be on the market as soon as two years from now.
Other possible parts include a full carbon fiber steering wheel and propeller shaft, the latter of which is coming as a single-piece component on the new M3 and M4. BMW is also talking up its use of secondary carbon fiber - waste material from i3 and i8 production - that can be used for items like IP support structures, seat frames and spare wheels in place of traditional metals like aluminum and magnesium. There's an excerpt of the Innovation Day press release below with more details.

Is BMW the only real competition to Tesla Motors?

Tesla Motors chief Elon Musk probably isn't losing a ton of sleep over the new plug-in efforts by the makers of the "Ultimate Driving Machine," but maybe he should. That's what the Motley Fool is saying, presenting the case that the California company's real competition will come from BMW. What about the plug-in efforts of General Motors or Ford? Musk can hit the snooze, Motley Fool says. Unlike automakers that are "jamming battery packs into the existing vehicle design," BMW has built its i3 battery-electric and i8 plug-in hybrid supercar from the ground up. Like Tesla, BMW puts its battery packs into the floor of its vehicles. Most importantly, the i3 - and especially the i8 - are real performers. While the i8 is about 40-percent more expensive than the Tesla, it matches the Model S's 0-60 mile per hour acceleration times and handily beats its top speed figures. Tesla sold about 6,900 vehicles during the last three months of 2013 and BMW had more than 10,000 i3 orders on the books by late November and the first year's allotment of i8s is already sold out. The German automaker has what the Fool calls an "outside chance" of selling more plug-in vehicles than Tesla by next year, but Tesla is gearing up its gigafactory to get ready to sell a half-million EVs in 2020, so the race is most certainly on. You can read more over on the Fool.