2001 E46 Titanium Silver Manual M3 on 2040-cars

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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.

Petrolicious reconnects with the BMW M coupe

With the look of a clown shoe on wheels, the BMW M Coupe was a product of using what was around to create something great. Starting with the Z3 convertible, BMW's engineering team added a bulbous roof to improve rigidity, and for the M version, it dropped in the inline six from the contemporary M3. While the result wasn't a beauty queen, the car more than made up for any aesthetic complaints in driving pleasure. Petrolicious talks to owner Alex McCulloch about just what makes the tiny three-door so special in its latest video. With a fairly short wheelbase, plenty of power, and a rear suspension from the E30-chassis BMW 3 Series, the M Coupe can be a quite handful at the limit. "I used to say it wanted to kill me, but now we've reached an agreement where it's not quite as murderous," McCulloch says. He's eventually found that the only real way to exploit the coupe to its fullest is on the track, where he competes in time trials. To get lap times as low as possible, the BMW now wears quite a few mods, but McCulloch says that it's all reversible. Figure out what competitive hang gliding has to do with driving in this clip from Petrolicious. Related Video:

Five bikes from EICMA you need to know about

Each and every year, the world's biggest motorcycle manufacturers gather together in Milan, Italy to show off the latest and greatest machinery that will soon be offered to dealerships the world over. It's called EICMA (Esposizione Internazionale Ciclo Motociclo e Accessori), and this year's crop of new motorcycles is just as exciting as ever.
We've selected five of the coolest motorcycles shown at this week's show, including models from Aprilia, BMW, Ducati, Honda and Yamaha. Join us down below for a high-performance, two-wheeled Italian journey.