Wheelies: The Purloined Chevrolets Edition Four vintage Chevrolets were stolen from events at Pebble Beach a couple of weeks ago, including a red 1961 Chevrolet Impala SS 409 convertible, a white 1961 Chevrolet Impala SS convertible, a yellow 1957 Chevrolet Bel Air and a red 1962 Chevrolet Corvette. The white "61 Impala and the Bel Air were stolen at night from Mecum Auctions" coral - both had received $50,000 bids that failed to meet the owners" reserve prices. The red "61 Impala, whose owner says is worth $220,000, was stolen from Russo & Steele's paddock. The "62 "Vette, whose owners had the car for 20 years, was taken at night from the parking lot of their bed and breakfast. The car's owner, Pat Monahan, said in a telephone interview that he had just restored the car's red hard top. Hemmings said the thieves might have wanted the cars for the value of their parts. Hemmings Daily and Jalopnik It's official: General Motors will offer its midsize pickup trucks - the Chevrolet Colorado and GMC Canyon - with at least one diesel engine option for the 2015 model year. International versions of the G.M. trucks are currently offered with two diesel mills - a 150-horsepower 2.5-liter Duramax that produces 258 pound-feet of torque and a 180-horsepower turbodiesel with 346 pound-feet. GM Authority According to a report compiled by Allstate Insurance, Fort Collins, Colo., is the safest city in which to drive in America. It is the third time Fort Collins has topped the list since Allstate began the rating system nearly a decade ago. Boise, Idaho; Sioux Falls, S.D.; Brownsville, Tex.; and Madison, Wis., followed Fort Collins in the ranking. The report compares America's 200 largest cities, attempting to discern the likelihood a motorist will get in a wreck, compared with the national average. Allstate also rated cities with populations of more than 1 million in terms of commuter friendliness. Phoenix and San Diego emerged as leaders. Allstate Facing decreased demand for new cars across Europe, Fiat announced that it would extend temporary layoffs at its Mirafiori factory in Turin. For the better part of the next year, about 5,300 people will be out of work, according to a report by Automotive News. Although the automaker closed a plant in Sicily in 2011, it said it had plans to rehire its Italian work force by 2016 by expanding Maserati and Alfa Romeo production. Automotive News Europe In an effort to shed its vanilla image, Volvo is working on the Concept C Coupe, which, from the limited glimpses of it that have been leaked on the Internet, looks like it may be a design more in keeping with the company's not-so-recent past. The world will see what the whole car looks like soon enough; a YouTube video Volvo posted hinted at a Thursday reveal. The car is scheduled to appear at the Frankfurt auto show next month. Jalopnik