1997 Cadillac Deville on 2040-cars

Auto blog

GM to make most cars LTE hotspots for 2015

General Motors isn't the first automaker to deliver in-car Internet access, but a proposed plan announced today could make the technology more widespread than any of its competitors have offered. By the 2015 model year, most Chevrolet, Buick, Cadillac and GMC products in the US and Canada will offer 4G LTE mobile broadband access. Initially, GM will just be pairing with AT&T to deliver this service, but additional carriers will be revealed in the future.
Current in-car Wi-Fi hot spots are limited to 3G, but GM says that 4G LTE is 10 times faster than 3G service and will allow for full Internet access, including streaming video for entertainment as well as services like real-time traffic updates and navigation driving directions. There is also no need for a paired smartphone with this new system, which should make it easier to use, and GM and AT&T will also be working together to develop new apps for customers.
Buyers can expect to start seeing 4G LTE in their cars starting next year, and GM is already planning to expand the service to other global markets as well. All of the information from GM's announcement is posted in a press release below.

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

Almost half of US Cadillac dealers say no to ELR plug-in hybrid

If you've got $75,995 (or so) burning a hole in your pocket and a hankering for the new Cadillac ELR, you'd better call your local dealer before you burn up shoe leather and gasoline to head down there. According to a report on Edmunds, only about 56 percent of the brand's 940 dealers have signed up to carry the premium plug-in hybrid. As much as we'd like to see the more affluent among us driving on electricity, we can certainly understand the dealers' apparent lack of enthusiasm. The article cites costs of up to $15,000 for tools and training to sell the ELR. Show floor real estate is another consideration for dealers who aren't enthusiastic about sacrificing space for a for a vehicle with initial sales – just 46 units nationwide in the first two months, but that volume is expected to increase – that are as mediocre as our first drive impressions. Still, for those locations that co-habitate with Chevrolet dealers who already participate in the Volt program, the extra expenditure shouldn't be too onerous. The two vehicles share the same basic electro-mechanical drivetrain, so those dealerships should have most of the needed infrastructure already in place. The bulk of ELR sales, according to Cadillac's global marketing director Jim Vurpillat, are expected to be in along the coasts, in places like California, Miami and New York. Featured Gallery 2015 Cadillac ELR: First Drive View 25 Photos News Source: Edmunds Green Cadillac Electric cadillac elr