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Cadillac drops the base engine in the 2017 ATS

Cadillac, in an effort to boost sales of the slow moving ATS, is making some changes to the 2017 model. Most notably, the luxury manufacturer is dropping the base 2.5-liter normally-aspirated four-cylinder engine from the lineup, leaving the 272 hp 2.0-liter turbocharged four as the base engine. The base 2.0-liter ATS will start at $35,590, $1,380 more than the 2016 model, though that's partially offset by more standard equipment. The base model now comes standard with Cadillac's controversial CUE infotainment system with an 8-inch touchscreen display, a Bose surround-sound speaker system, and a backup camera. Despite the bump in price for the base model, all other ATS trim levels will see prices reduced between $650 and $1,100, depending on the model. The ATS was designed to be Cadillac's answer to the BMW 3-Series and Mercedes-Benz C-Class. Though the ATS was originally released at a time where the Germans were slightly off their game, it's never quite matched up in terms of performance or customer perception posting disappointing sales figures compared to the competition. Cadillac has had problems getting customers into cars, and few ATS customers are converts from luxury competition. In order to offload inventory and lure in new customers, the company has previously been forced to offer big lease deals. Many of these customers have come over from more mainstream brands like Chevrolet and Ford. ATS sales have fallen 23 percent through May versus 2015. The car's market share has fallen every year since 2013, currently occupying just 4.5 percent of the compact luxury market. Unless Cadillac can offer some truly amazing deals, we don't expect many shoppers to buy American over the strong German competition. Related video: Cadillac Luxury Sedan

What if the mid-engine Corvette is really a Cadillac?

Call me crazy, but I'm not convinced the mid-engine Corvette is the next Corvette. The rumor is strong, yes. And, contrary to some of the comments on our site, Car and Driver - leader of the mid-engine Corvette speculation brigade - has a pretty good record predicting future models. But it's another comment that got me thinking: or maybe it's a Cadillac. There is clearly something mid-engine going on at GM, and I think it makes sense for the car to be a Cadillac. First off, check out how sweet the 2002 Cadillac Cien concept car still looks in the photo above. Second, there are too many holes in the mid-engine Corvette theory. There are too many holes in the mid-engine Corvette theory. The C7 is relatively young in Corvette years, starting production almost three years ago as a 2014 model. Showing a 2019 model at the 2018 North American International Auto Show would kill sales of a strong-selling car before its time. Not to mention it would only mean a short run for the Grand Sport, which was the best-selling version of the previous generation. More stuff doesn't add up. Mid-engine cars are, in general, more expensive. Moving the Vette upmarket leaves a void that the Camaro does not fill. There's not much overlap between Camaro and Corvette customers. Corvette owners are older and enjoy features like a big trunk that holds golf clubs. Mid-engine means less trunk space and alienating a happy, loyal buyer. Also, more than 60 years of history. The Corvette is an icon along the likes of the Porsche 911 and Ford Mustang. I'm not sure the car-buying public wants a Corvette that abandons all previous conventions. And big changes bring uncertainty - I don't think GM would make such a risky bet. Chevrolet could build a mid-engine ZR1, you might say, and keep the other Corvettes front-engine. Yes they could, and it would cost a ton of money. And they still need to fund development of that front-engine car. I highly doubt the corporate accountants would go for that. But a Cadillac? Totally. Cadillac is in the middle of a brand repositioning. GM is throwing money at this effort. A mid-engine halo car is the just the splash the brand needs to shake off the ghosts of Fleetwoods past. And it's already in Cadillac President Johan De Nysschen's playbook. He was in charge of Audi's North America arm when the R8 came out. A Caddy sports car priced above $100,000 isn't that unreasonable when you can already price a CTS-V in that range.

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