http://www.csmonitor.com/Business/In-Gear/2015/0217/Tesla-Roadster-3.0-update-San-Jose-to-LA-without-recharging Tesla Roadster 3.0 update: San Jose to LA without recharging By Stephen Edelstein, GreenCarReports February 17, 2015
[image / Issei Kato/Reuters/FIle http://images.csmonitor.com/csm/2015/02/0217roadster.JPG A Tesla Motors Roadster electric car drives in Tokyo in 2010. Telsa has confirmed an update of its first product, the Roadster 3.0, which has an extended range of between 40 and 50 percent. ] The Tesla Roadster has received its long-awaited update. A prototype of the Roadster 3.0 boosts the range of Tesla's very first product between 40 and 50 percent. Back in December, we first received confirmation of the "3.0" update for the Tesla Roadster, the electric-car maker's very first product, sold in the U.S. from 2008 through 2011. Tesla claimed the update would boost the Roadster's range 40 to 50 percent, and said a real-world demonstration was forthcoming. Now, that's been taken care of. A prototype Roadster 3.0 recently made the trip from San Jose, California, to the Santa Monica Pier in Los Angeles without stopping to recharge. That's a distance of approximately 340 miles, completed without any hiccups, according to a company blog post. While Tesla's original announcement of the Roadster 3.0 boasted that it could be driven over 400 miles per charge in certain conditions, this real-world test still showed a nearly 100-mile boost in range compared to the current car's 244 miles. Tesla also claims 20 miles worth of charge remained after completing the six-hour drive. The test trip started at the first Tesla Store in San Jose, and followed the I-5 to Santa Monica Pier, via a second Tesla Store on the 3rd Street Promenade. Cruise control was used on the highway sections of the route--set "to stay right around the speed limit"--and the heater was turned on for approximately 40 minutes, according to Tesla. The Roadster 3.0 upgrade consists of three major components. The first is a boost in battery-pack capacity from 53 kilowatt-hours to around 70-kWh, which will be accomplished using new battery cells with higher energy density. The second element is an aero kit that Tesla says will lower the coefficient of drag by about 15 percent from the current 0.31. Finally, the updated Roadster will be equipped with lower rolling resistance tires. Tesla previously said the coefficient of rolling resistance will be reduced from 11.0 kilograms per ton to 8.9 kg/ton. Tesla won't yet discuss pricing, availability, or the timing of the Roadster 3.0's launch. The company said it will apply lessons learned from the trip to continue development, meaning it could still be a while before customers can reinvigorate their Roadsters. [© The Christian Science Monitor] http://www.autoevolution.com/news/tesla-roadster-finishes-340-mile-trip-from-san-jose-to-la-on-a-single-charge-92371.html Tesla Roadster Finishes 340-Mile Trip From San Jose to L.A. on a Single Charge by Tudor Rus 17th February 2015 [image http://s1.cdn.autoevolution.com/images/news/tesla-roadster-finishes-340-mile-trip-from-san-jose-to-la-on-a-single-charge-92371_1.jpg ] If you’re moderately interested in Elon Musk’s work of making the world a better, greener and cleaner place by squeezing the immense potential of electricity, then you surely know Tesla loves road trips. Especially those that only require a single battery charge. But first, let’s meet the test subject, a prototype of the Tesla Roadster 3.0 upgrade. For those who arrived late at the party, the 3.0 update was specifically designed for the Roadster, Tesla’s first electric offspring. Announced in December, the Roadster 3.0 upgrade features consistent tweaks in battery cell technology, aerodynamics and rolling resistance. More precise, the battery pack capacity went from 53 kWh to about 70 kWh, an aero kit lowered the drag coefficient to just 0.31 and low resistance tires were installed on the updated Roadster. According to Tesla, these additional improvements will help the vehicle’s range bounce by 40 to 50%, to over 400 miles (644 kilometers). As good as this might sound in theory, we all know that real-life conditions will get the last word on this, right? Well, here’s the catch. Tesla set up a road trip which will help the electric-car maker in evaluating the package’s efficiency. In other words, the test prototype embarked on a 340-mile (547 kilometers) journey between the Tesla store in San Jose and the Santa Monica Pier in California. I think you already guessed the outcome of the journey, but that won’t hold us back from telling you that the trip was smooth ride, without interruptions. Finally, the Tesla Roadster 3.0 prototype needed less than six hours to reach its final destination, with 20 miles remaining in the battery pack. Despite being a bit far-fetched from Tesla’s aforementioned improved range, the real-world test showed a visible improvement - by nearly 100 miles (161 kilometers) - compared to what the current car can deliver, which is something around the 244 miles (393 kilometers) mark. Yet again, as the famous Barrack Obama meme would put it, not bad, not bad at all. [© autoevolution.com] http://www.gtspirit.com/2015/02/18/tesla-roadster-3-0-completes-550-km-journey/ Tesla Roadster 3.0 Completes 550 km Journey [image http://www.gtspirit.com/wp-content/uploads/2015/02/road_test_tesla_roadster_sport_25_006.jpg Tesla Roadster 3.0 http://www.gtspirit.com/117368/gallery/1505/15958/ gallery Road Test Tesla Roadster Sport 2.5 ] Late last year, the updated Tesla Roadster 3.0 was revealed complete with an improved battery pack to dramatically increase its range. To test out the new range, the Californian-based automaker recently embarked on a journey from a Tesla dealership in San Hose through to the Santa Monica Pier in the heart of California. All up, the journey was 547 km (340 miles) and the American-built electric sports car managed to complete the drive without issues and most importantly, on a single charge. Impressively, the drive took less than six hours and when completed, the Roadster 3.0 still had 20 miles left in its battery pack. This is nearly on par with the 400 mile range Tesla announced for the car upon its release. GTspirit Review of Tesla Roadster 2.5 Beyond the improved battery pack, the Tesla Roadster 3.0 also features revised aerodynamics and improvements to the rolling resistance. The original Roadster had a drag coefficient of 0.36 but that has been improved by 15 per cent to 0.31 with a retrofit aero kit. On the rolling resistance side of things, the original cars had a rolling resistance of 11.0 kg/ton. Thanks to new tyres however, a 20 per cent improvement has been achieved to bring the figure down to 8.9 kg/ton. 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