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What does the open patents deal mean for Tesla ... and BMW?

Gift to the world or trade bait? Tesla Motors announced this week it would open its patents for other automakers to use. That has analysts guessing whether the California-based electric-vehicle maker is looking to either swap trade secrets with other automakers or to expand the proverbial pie that represents the plug-in vehicle market. For its part, Tesla says the answer is B. BMW, which is establishing its i sub-brand of plug-in vehicles, would be a natural collaborator with Tesla, Forbes says. In fact, executives from the two companies met in Europe this week. Details were not released, but a BMW spokesman said, "Both companies are strongly committed to the success of electromobility and discussed how to further strengthen the development of electromobility on an international level." While Tesla brings battery technology to the table, BMW offers its carbon-fiber advancements that lighten vehicle-body weight. Those advancements are key to range-extending efforts and could do wonders for Tesla on its journey to help spur technology for the sake of getting more of the general public to accept plug-in technology as a viable first-car option. Then again, Forbes says Tesla, whose investors include Mercedes-Benz parent Daimler and Toyota, may be keeping its best technologies to itself by not patenting certain advancements at all. What's in Tesla's patent pool? uAutoInsurance analyzed Tesla's 249 patents and found that 104 of them related to battery technology, while 28 pertained to recharging activity, which wasn't surprising (about a quarter of those 249 patents couldn't readily be categorized). Tesla also has nine patents related to sunroof technology. The company is based in California, after all.

These are your top 10 worst-selling vehicles of 2012

Despite 2012 being the best year of auto sales this country has seen since 2007, not every vehicle got an equally large share of the sales pie. Some barely got a sliver, as evidenced by this year's list of the top 10 worst-selling vehicles of 2012. We've dug through sales data from every automaker to come up with this year's list and, like last year, we've set some parameters to ensure it includes legitimately bad-selling vehicles. The first parameter is a starting MSRP under $100,000, which automatically excludes what's parked in most one-percenters' garages. We're also excluding vehicles cancelled in 2012, even if they garnered sales through the end of the year while dealerships sold off remaining inventory. This includes models like the Mitsubishi Eclipse, Mercedes-Benz R-Class and last year's worst-seller, the Acura RL. Next, vehicles are considered as they are reported by the automaker, which means that, while sales of the Murano CrossCabriolet were probably low enough to make the list, because Nissan reports only one number for all Murano sales, it was excluded. Cadillac, however, reports sales of the Escalade EXT separately from the Escalade, hence its repeat appearance. Finally, there was the question of whether or not eligibility should be given to Suzuki vehicles, as the brand announced in November that it would end sales in the US as soon as its current inventory ran out. We decided Suzuki vehicles should be included as the brand was offering 2013 models at the time of the announcement, and as far as we can tell, inventory levels remained high enough to satisfy demand through the end of the year. Without further ado, below are the top 10 worst-selling vehicles of 2012. Top 10 Worst-Selling Vehicles of 2012 10. Volvo C30 MSRP: $25,500 Units Sold: 2,827 Last Year: – 9. BMW Z4 MSRP: $47,350 Units Sold: 2,751 Last Year: – 8. Audi TT MSRP: $39,545 Units Sold: 2,226 Last Year: – 7. Subaru Tribeca MSRP: $32,595 Units Sold: 2,075 Last Year: 10 6. Suzuki Equator MSRP: $19,449 Units Sold: 1,966 Last Year: 7 5. Cadillac Escalade EXT MSRP: $63,060 Units Sold: 1,934 Last Year: 6 4. Nissan GT-R MSRP: $96,820 Units Sold: 1,188 Last Year: – 3. Acura ZDX MSRP: $50,920 Units Sold: 775 Last Year: 4 2. Mitsubishi Lancer Sportback MSRP: $18,495 Units Sold: 702 Last Year: 3 1. Mitsubishi i-MiEV MSRP: $29,125 Units Sold: 588 Last Year: – Want a little more "worst-selling" data? Check out our list of the top 10 worst-selling vehicles of 2011.

Watch the BMW i8 get wrung out on the Ring

Been wondering where the heck the reviews of the all-new, plug-in-hybrid BMW i8 have been? After all, the car isn't exactly new, having debuted in concept form way back in September of 2009. In August of last year, we even tested a prototype of the new supercar. Despite that, though, we still haven't gotten a crack at the actual vehicle that will be sold to the public.
Well, we're happy to tell you that we're currently testing the i8 and will have a proper review for you soon. If, however, you're just aching for some coverage of the low-slung plug-in, we have a short video of it in action around Germany's famed Nürburgring.
Despite it's three-cylinder, turbocharged gas engine, the i8 sounds pretty angry as it laps the Ring. That is, until it has a little bit of a breakdown. According to the guys that caught the car on video, it appeared the i8 had a minor brake issue, and was parked on the side of the track for a good 15 minutes, with the driver pumping the brakes. We should probably just take this as proof, then, that manufacturers are actually using the Ring for testing, and not just messing about.