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GM Ultium tech can scavenge heat from everywhere, even you

GM likes to give us tidbits about its Ultium platform from time to time, and today it’s telling us about the platformÂ’s ability to capture waste heat from the propulsion system. In addition to capturing from the propulsion system, it can also capture humidity from both inside and outside the vehicle and even from passengersÂ’ body heat. Yes, you, your family and/or your friends are a usable heat source as far as GM EVs are concerned. It then deploys the heat in an advantageous way. If at this point, youÂ’re screaming, "Heat pump!" youÂ’d be right. WeÂ’re talking about an elaborate heat pump system that GM is using for its Ultium-based vehicles. Every Ultium-based GM vehicle gets this system that is covered by 11 patents and four publications. The waste heat it collects is used in a number of ways, but its primary use is to heat the cabin quickly and efficiently. GM claims it can heat the cabin of its Ultium-based vehicles quicker than vehicles with traditional internal combustion engines. Plus, when put to use, GM claims that using the heat pump provides its EVs with up to 10% more range than theyÂ’d have without. Beyond heating the cabin, the heat pump is capable of putting waste heat to use by preheating the battery prior to charging so that you can charge quicker. The system can even cool the propulsion system in preparation for Watts to Freedom (WTF) launch control starts. GM says this was vital in helping the Hummer EV achieve its bonkers 0-60 mph time of about 3 seconds. “Having a ground-up EV architecture gives us the freedom to build in standard features like UltiumÂ’s energy recovery capabilities,” said Doug Parks, GM executive VP of global product development, purchasing and supply chain. “This helps us squeeze more efficiency, performance and overall customer benefit out of our EVs.” GM says itÂ’s been developing heat pump technology since the EV1 and its heat pump. This is the modern evolution of that technology, and GM says itÂ’s going to be implemented in every Ultium-based vehicle as a standard feature. Related video: Green Cadillac Chevrolet GM GMC Technology Electric Future Vehicles

2015 Cadillac Escalade blings its way into LA

The new Cadillac Escalade sauntered out onto the Los Angeles Auto Show stage, showing off its new familial face and redesigned interior. That exterior, with its slim, wrap-over headlights and tall, vertical taillights (both made up of LEDs) is a subtle but significant departure from the past styling of General Motors' flagship SUV.
And while there's no shortage of stuff to discuss about the Caddy's exterior, its cabin is where the big changes happen. Aside from the column-mounted shifter, the cabin receives a heavy going-over, receiving Cadillac's new CUE infotainment system and a significant upgrade to the materials. Comparing it to furniture, Eric Clough, Cadillac's director of design for interiors, said, "An exceptional level of craftsmanship has gone into the redesign of the 2015 Cadillac Escalade, and it all centers on the premium materials and extensive use of cut-and-sew live stitching."
Under hood sits a 420-horsepower, 460-pound-foot, 6.2-liter V8. Fitted with direct injection and active fuel management, fuel economy for the big Escalade should get a much-needed boost beyond the current model's 14-city and 18-highway miles per gallon, although official numbers haven't been published quite yet. A six-speed automatic is the sole gearbox choice. Cadillac has also fitted the new Escalade with GM's magnetic ride control system, which should deliver a more refined ride than its predecessor.

Cadillac Elmiraj sedan RWD flagship finally caught testing

While we still have no insight as to it being named Elmiraj, STS or some other permutation of the -TS nomenclature ("LTS" has apparently been registered by GM, as well), new spy shots give us proof positive that Cadillac is indeed hard at work on a rear-wheel-drive flagship model. Spied for the very first time in some north country testing, these shots provide a first look at the upcoming range-topper from Cadillac.
Impressively long and large bodywork ride atop new General Motors' corporate Omega rear-drive architecture here. Heavy cladding over camouflage may discourage finding any details, but the overall, sharp-edged and blocky design is clearly reminiscent of what we've seen on the new CTS and the recently debuted ATS coupe. A strong, wheels-at-each-corner stance helps emphasize the length of this stretched Caddy, and everything about the proportions seem spot-on for a new fullsize flagship for the brand.
It's quite possible that Cadillac will ultimately festoon this large sedan with detailing reminiscent of the original Elmiraj coupe, though thus far we've only seen prototypes wearing four-doors.