2005 Chevrolet Avalanche 1500 Z71 Crew Cab Pickup 4-door 5.3l on 2040-cars

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Ford Police Interceptors dominate Michigan State Police testing

Once again, Ford Motor Company builds the fastest police vehicles. The Blue Oval touted the news in an official release following Michigan State Police and Los Angeles County Sheriff's Department testing. Ford did very well. Except for one acceleration metric – zero to 10 miles per hour – the Blue Oval's Taurus and Explorer-based cop cars were the quickest, with particular praise coming for the EcoBoost-powered models, which bested Chevrolet and Dodge's V8-powered variants. Dearborn's products also posted the fastest average times around MSP's vehicle dynamics course. But it wasn't all positive for Ford. The only four-cylinder in the contest, the 2.0-liter, EcoBoost Ford SSP Sedan, had both the lowest top speed, 120 mph, and the slowest acceleration figures. It was also the slowest in track testing. Ford's products also failed to match the braking and top speeds of its rivals from Detroit and Auburn Hills – the rear-drive Charger Pursuit posted the best braking stats of the entire test, while the V8-powered Chevrolet Caprice hit the highest top speed, at 155 mph. Ford did score a top speed award, among SUVs, but at 132 mph, the naturally aspirated Police Interceptor Utility had to share its award with the equally fast, rear-drive Chevrolet Tahoe. The LA County Sheriff's timing isn't publicly available, but according to Ford, the EcoBoost-powered police cars put on a similarly impressive show for cops on the West Coast. We've assembled a spreadsheet on Google Docs that offers an easy to browse comparison of the different stats assembled by the Michigan State Police, and divided the vehicles between standard V6-powered sedans, high-performance sedans (EcoBoost and V8 models), and SUVs. You can check it out here. Related Video:

GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

No diesels in the running for 2016 Green Car Of The Year

It's a new era for the Green Car Of The Year. In the past, the theme of the award was to take a broad look at alternative powertrains and pick the best among them. "Clean diesels" from the Volkswagen group were often among the finalists and won the award twice. For the 2016 edition - which will be handed out at the LA Auto Show next month - not a single diesel made the list. There's little wonder why. Green Car Journal, which names the winner with a panel of experts, had to strip two VW brand vehicles of their past wins. The 2009 VW Jetta TDI, which won in 2008, and the 2010 Audi A3 TDI, which won in 2010, have both lost their titles now that the world knows about the "defeat devices" that VW installed in many of its TDI vehicles around the world. So, what does that leave us with for 2016? Two plug ins, a hybrid, and two gas vehicles. The two electric vehicle are the Audi A3 e-tron and the Chevy Volt, while the all-new Toyota Prius (which will come with a plug-in version later) is the lone pure hybrid. Rounding out the pack are two efficient gas models: the Hyundai Sonata and the Honda Civic. This is the tenth year for the Green Car Of The Year, and it will be interesting to see if diesels can come back into the award's good graces (for the record, no diesels were among the finalists in 2013, either) in the future. For now, we'd like to know who you think should win. You can read more about the finalists in the press release below and then cast your vote in our poll. Show full PR text FINALISTS ANNOUNCED FOR 2016 GREEN CAR OF THE YEAR Green Car Journal to Reveal Winner of 11th Annual Award at LA Auto Show Press & Trade Days, November 19 LOS ANGELES, CA (October 15, 2015) – Green Car Journal has announced its five finalists for the magazine's prestigious 2016 Green Car of the Year® award. The 2016 models include the Audi A3 e-tron, Chevrolet Volt, Honda Civic, Hyundai Sonata, and Toyota Prius. An increasing number of vehicle models are considered for the Green Car of the Year® program each year, a reflection of the auto industry's expanding efforts in offering new vehicles with higher efficiency and improved environmental impact. Green Car Journal has been honoring the most important "green" vehicles every year at the LA Auto Show, since its inaugural award announced at the show in 2005.