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Thermal imagery of BMW M4 DTM pit stop is red hot

A pit stop is a pit stop, right? The race car pulls in, the crew changes the tires, pumps in some fuel, maybe swaps out a busted body panel or squeegees the windshield, and off it goes for another heat. Only pit stops have become the focus of news lately for a number of reasons, whether it's because of mishaps (like the ones that prompted F1 to ban mid-race refueling), new time records (due largely to said ban) or interesting new ways to film the fast-paced action.
A few weeks ago we brought you footage of an IndyCar pit stop filmed from multiple angles courtesy of Google Glass. Now BMW has released a brief clip of one of its M4 DTM racers coming in for fresh rubber, all filmed by infrared camera. Its the kind of technology BMW uses to help optimize its German touring cars for competition, and now the Bavarian outfit has released some footage for fans to enjoy.
The resulting thermal imagery gives you an idea of how hot the car runs (and where the heat is emanating from), how warm they get the fresh rubber before they get it onto the car, and what kind of temperatures the pit crew is subjected to. Look closely enough in the 25-second video below and you'll even see the heat sputtering out of the exhaust pipes as the M4 downshifts into its pit box. (Just don't try adjusting your speakers, the clip is without audio.)

American motorcycle brands most satisfying, Japanese most reliable, says Consumer Reports

Consumer Reports started tracking motorcycle reliability last year through its regular reader survey, just like the magazine's well-known auto guide. For the 2015 edition, CR now has data on over 12,300 bikes, compared to 4,680 in 2014, and the extra info means it can include more brands, like Suzuki, Triumph and Can-Am, to the list. However, the final results remain largely the same. As with last year, Japanese bikes are the best choice for buyers who prioritize reliability. Yamaha comes out on top yet again and is followed by Suzuki, Kawasaki and Honda. Victory and Harley-Davidson hold the middle of the list, and the European cycles from Triumph, Ducati and BMW sit at the bottom. The major outlier in this regional distinction is the Can-Am Spyder from Canada's Bombardier Recreational Products that comes in dead last in the dependability survey. Still, even the most dependable model is occasionally going to break, and the average repair bill across all brands is $342, according to CR's readers. Kawasakis are the cheapest to keep on the road at a median of $269 for fixes, versus BMW as the most expensive at $455. Through all of the companies, electrical gremlins are the most common issue, causing 24 percent of problems, but faults with the cooling system, pistons or transmission are the smallest concerns at 4 percent each. While Japanese cycles might be the easiest to keep on the road, they aren't the most beloved by riders. In CR's gauge of satisfaction, the Americans reign supreme. Victory owners love their bikes the most with 80 percent reporting that they would buy another. Harley riders are known for having a close bond to the company's models, and the brand comes in second with 72 percent. Finally, Honda rounds out the top three at 70 percent. Head over to Consumer Reports to see more results. News Source: Consumer ReportsImage Credit: Toby Brusseau / AP Photo BMW Honda Suzuki Motorcycle Ducati bike victory

Audi tops BMW and Mercedes in luxury sales

April was a good month for Audi, as the four-ring automaker beat out both Mercedes-Benz and BMW in sales. Bloomberg reports that it was America's appetite for CUVs like the Q5 and ancient Q7 that helped Audi move nearly 153,000 units around the globe. It's not all good news, though. Audi's worldwide sales only jumped by 2.5 percent, compared to BMW and Mercedes, whose sales increased 5.6 and 11 percent, respectively. On top of that, BMW is still the best-selling brand (of the three, anyway) so far in 2015, outselling Audi by roughly 9,000 units and Mercedes by about 23,000 vehicles. Considering the faster growth of its rivals, it's unclear if Audi will be able to hang onto the monthly sales crown beyond April, or if BMW will continue its reign as the world's biggest luxury automaker.