2006 Cadillac Escalade Esv Sport Utility 4-door 6.0l on 2040-cars

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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

Tesla leads and Infiniti bleeds in Consumer Reports' satisfaction survey

According to Consumer Reports, Tesla owners are more likely to rave about their vehicles than any other brand. And we're not surprised — Tesla has performed very well in past customer satisfaction surveys, despite the fact that the electric cars themselves tend to have more problems than most other automobiles. Second place went to Lincoln, which interestingly had a higher cumulative score than Tesla in individual category measurements like comfort and storage space. Ram, a truck-only brand, rounded out the top three. The consumer-focused magazine bases its owner satisfaction score on responses to a very simple question: Would you buy this exact car again? The higher percentage of owners who answer "definitely yes" to that question, the higher the satisfaction score. Further breakdowns are scored for other parts of the ownership experience, which is why brands that rank poorly in Consumer Reports' own reliability charts — like Tesla and Lincoln, for example — can still earn top marks for satisfaction. The lowest-ranked brands for satisfaction are Cadillac, Nissan and Infiniti. Interestingly, Cadillac performed better than average in Driving and Comfort and middle-of-the-road in the In-Car Electronics and Cabin Storage, but like most other brands, scored poorly in Value. In fact, only Subaru, Mazda and Volkswagen scored better than average in Value. Nissan and especially Infiniti earned comparatively low marks across the board to go along with the bottom-of-the-barrel satisfaction score. Here's the full list of automakers from Consumer Reports' satisfaction survey, ranked in order from best to worst: Tesla Lincoln Ram Chrysler Subaru Hyundai Porsche Dodge Mazda Toyota Kia Mini BMW Ford Audi Honda Volvo Volkswagen Lexus Jeep GMC Chevrolet Mercedes-Benz Buick Cadillac Nissan Infiniti It's worth diving into the individual category scores in addition to the official finishing order for a full look at the results. For instance, despite the fact that automakers like Lincoln and Ford use similar infotainment systems, their In-Car Electronics scores don't quite match up. Also, some automakers have full lineups with multiple cars, trucks and SUVs while others offer just a couple of nameplates. Head on over to Consumer Reports for all the details. Looking for a reliable car, truck or SUV? Check out the top 10 vehicles that owners keep the longest.

Cadillac Escalade gets $10,000 discount to ward off Navigator

Cadillac is once again defending its full-size luxury Escalade SUV from assault by the hot-selling Lincoln Navigator, offering $10,000 discounts to some current customers to keep them from switching brands. The discount, reported by Bloomberg, applies to lessees of 2016 model-year Escalades, with a $7,500 discount offered to owners, through May 31. It's at least the second time GM has resorted to incentives to keep customers in its cash-cow luxury SUV since Ford launched the all-new 2018 Navigator late last year. In November, Cadillac offered a $5,000 discount on the purchase or lease of the Escalade to any buyer who traded in a 1999 or newer Lincoln model. Analysts have estimated that the Escalade produces nearly $1 billion in yearly profit for GM. Escalade sales were up 14 percent in March and 8 percent during the first quarter, with retail sales up by double-digit percentages in both periods, higher transaction prices and market share expected to climb by 2 percent year-to-date, according to GM. That's impressive for a vehicle that has received only minor updates since the current generation went on sale for 2015. While it still trails the Escalade in sales, the Navigator has been riding a 63 percent increase in deliveries this year, with new models lasting on dealer lots an average of only 10 days and average prices ballooning to $82,500, according to Bloomberg. Ford earlier this year announced it was pouring $25 million into its Kentucky Truck Plant in Louisville to boost production of the Navigator and Ford Expedition. You can read Autoblog's side-by-side comparison of the 2018 Escalade and Navigator with competitors including the Lexus LX 570 and Infiniti QX80. Related Video: Image Credit: Cadillac Cadillac SUV Luxury sales incentives lincoln navigator sport utility vehicle discount