1980 Cadillac Seville Base Sedan 4-door 5.7l on 2040-cars

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2015 Cadillac ATS Coupe prepares to fight BMW 4 Series

Cadillac introduced its new ATS Coupe at the 2014 Detroit Auto Show today, bringing customers an alternative to the growing range of sport luxury coupes typified by the BMW 4 Series, Audi A5 and Mercedes-Benz C-Class Coupe.
The ATS Coupe, as a slightly more premium offering, ditches the wheezy 2.5-liter engine found in the basic ATS Sedan, but retains the four-door's 2.0-liter, turbocharged four-cylinder and 3.6-liter V6. That four-pot turbo benefits from a fettling that has increased torque from 260 pound-feet to 295, although its peak is only available from 3,000 rpm to 4,600 rpm, unlike in the sedan, where peak twist arrives at just 1,700 rpm and sticks around until 5,500 rpm.
Power can be channeled to either the rear or all four wheels by the owner's choice of a Tremec six-speed manual or a six-speed automatic transmission. According to Cadillac, the new Coupe can get to 60 in 5.6 seconds when fitted with the 2.0-liter turbo.

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

President Trump might get to start his administration in a new Cadillac limo [UPDATE]

(UPDATE: Jalopnik is reporting an unidentified source claimed the new limo would not be featured in today's inauguration ceremony. The source did say however that the limo would join the presidential fleet later this year.) A rumor is going around that President-Elect Donald Trump will have a brand new set of wheels the day he takes office. The Cadillac Presidential Limousine, nicknamed "The Beast," was last refreshed in 2009 and led President Barack Obama's second inauguration-day parade. Cadillac could not confirm any timeline for the new presidential limo, nor could it confirm any specifics about the car nicknamed Beast 2.0. That's as expected, because details on the presidential limo are closely guarded and considered matters of national security. The outgoing original "Beast" limo marked a switch to a custom-built vehicle based on a General Motors truck frame. Previous limos were based on the actual cars they looked like. As we've seen in spy shots, The Beast 2.0 limo looks more like an Escalade SUV or CT6 sedan but is reported to be roughly the same size and shape as the old Beast, which is built on a Chevrolet Kodiak/GMC TopKick medium-duty truck chassis. AutoWeek is reporting that the new limo is set to debut for Trump's inauguration, however those reports could not be confirmed for the reasons mentioned above. The new Presidential car is expected to accommodate seven passengers in conference-style seating in the back like the current version. The Beast isn't meant for road trips, as it is mostly used to ferry the President to and from Air Force One when traveling, or on short trips around Washington D.C. That's good, considering the current limo only gets 3.7 miles per gallon. Along with multiple screens for video conferencing, The next Beast will also definitely include advanced armoring and weaponry. For security reasons, it's impossible to know the extent of those systems, but any vehicle transporting the most powerful man in the world around has to be tough. The entire process of designing and building the Presidential limo is top secret, as the Secret Service figures the less everyone knows about the Presidential Limo, the better. The new Beast, we can safely assume, is likely the safest vehicle in the world. The Secret Service began taking bids on building a replacement in 2014 because integrating all of the required armor is technically challenging.