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The Jitterbugs somersaulted at the 1986 Chicago Auto Show for the Chevy Nova

Judging by the vintage videos that the Chicago Auto Show has been uploading, if you wanted to check out the latest vehicles and watch some dancers in the same place in the late '80s and early '90s, then the Windy City event was definitely the place to be. We've already seen the Footlockers pitching the Cavalier in '88 and a troupe of women singing about the Geo brand in '91. Apparently, the trend went back even further, though. Just take a look at this group called the Jitterbugs selling some badge-engineered products from Chevrolet at the 1986 show. Flanked by the Chevy Nova and Spectrum, these guys managed to do a few pretty impressive jumps and somersaults but mixed them with some rather uninspired spins, as well. Also, wait for 1:24 into the clip to see the least enthusiastic backup dancers that the world has ever known. The Jitterbugs are even further proof that Chevy's habit of mixing dancing and its vehicles goes back even further than the Volt. News Source: ChicagoAutoShow via YouTube Auto News Marketing/Advertising Chicago Auto Show Chevrolet Videos Chicago chevy nova

GM exploring ways to raise half-ton Duramax diesel tow rating

Lots of truck owners cheered when GM announced fuel economy numbers for the 2020 Chevrolet Silverado with the 3.0-liter Duramax diesel inline-six. Even after Ram let loose its EPA mileage ratings for the 2020 Ram 1500 EcoDiesel, the Chevy oil-burner still took the trophy. The victory was years in the making, GM engineers spending an entire four-year development cycle refining the LM2 Duramax to increase mileage. The tradeoff, as well all know by now, is towing; the Duramax in half-ton duty pulls a maximum 9,300 pounds in the Silverado. Rivals across town can do more, the Ford F-150 PowerStroke rated at 11,500, the Ram 1500 EcoDiesel game to pull 12,560. GM engineer John Barta told Muscle Cars & Trucks that more hauling chops could be on the way, explaining, "We’re actually looking at upgrading some of the materials around (the engine bay) to see if we can maybe raise our tow rating." Engine bay materials are at issue due to thermal complexities underhood. John Barta, GM's assistant chief engineer of diesel engine controls, said the Duramax's inline-six configuration allowed engineers to get emissions hardware like the combined selective catalytic reduction, diesel oxidation catalysts, and diesel particulate filter unit closer to the engine, where it heats up quicker, getting emissions down quicker. But that filter puts another heat source in those confines, enforcing a cap on the tow rating to keep the engine and other systems from overheating. "If you look under the hood," he said, "youÂ’ll see a significant amount of silver ‘moon tapeÂ’ around to make sure things arenÂ’t getting overheatedÂ… if we were to go up in higher towing, which we can, we start impacting the possibility of deteriorating some of the components.” There isn't much space for more grille, so swapping for a better grade of "moon tape" or a different kind of material could reduce engine bay heat, extracting a higher tow rating in the process.  It's important to note a point Barta's been making for months about the Duramax figures, though. "Even though itÂ’s nice to brag about big numbers, in reality, light duty customers are not towing that large with their trucks," and, "We do know that (95 percent) of our light duty customers donÂ’t tow over 9,000 pounds." On our First Drive of the 2020 Silverado diesel we called out the tow rating, but emphasized that the Chevy and GMC have more important challenges to overcome.

Nissan Leaf hits 3,000 sales in July, Chevy Volt climbs over 2,000

It was a good sales month for both the Nissan Leaf and the Chevy Volt, with the two 'elder statesman' plug-in vehicles reaching numerical milestones in July. The Leaf sold 3,019 units and the Volt crossed the 2,000 sales level for the first time in 2014, hitting 2,020 sales. With Tesla also announcing it is delivering around 2,500 Model S EVs a month (but that's globally, compared to the US-only numbers for the Volt and Leaf we're talking about here) and Ford's plug-in vehicles selling well, we are certainly in a golden moment for EV sales. The Volt was a bright spot for the Bowtie brand last month. For the Volt, the 2,020 units sold represents a 13 percent increase from July of 2013 even thought year-to-date sales are down 8.7 percent this year compared to last year. Overall, total Chevrolet deliveries for July 2014 were up eight percent compared to 2013, so the Volt was a bright spot for the Bowtie brand last month. On the Leaf front, this is only the second time that the EV has sold more than 3,000 units in a month (the other being in May of this year). The year-over-year increase for the Leaf was 62 percent in July and represents the 17th straight month of record sales, as Nissan is more than happy to report each month. Overall, Leaf sales are up 34.6 percent, year-to-date, and Nissan's director of Leaf sales and infrastructure, Brendan Jones, said in a statement that a free public charging incentive was responsible. "Since we launched the No Charge to Charge promotion in the first 10 markets, we've seen a surge in Leaf sales in those areas. Leaf sales in the northeastern US are also picking up with new tax incentives for Massachusetts and Maryland residents." With No Charge To Charge set to expand to 25 markets over the next year, we expect Leaf sales to continue to grow. We will have our monthly look at all green car sales available soon, so stay tuned. Green Chevrolet Nissan Electric PHEV ev sales