2010 Mercedes-benz Slk300 Base Convertible 2-door 3.0l on 2040-cars

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Recharge Wrap-Up: No new Smart Roadster, Africa to UK on one tank, Duke's efficient axial engine [w/videos]

Smart will not make another generation of the Roadster, but a Smart SUV might be in the cards. According to Smart's CEO, Annette Winkler, "The Roadster isn't a profitable business case. Everybody is keen on the car, but nobody wants to pay the bill." What Car? states that Smart is likely planning a baby SUV to take on the Nissan Juke and its ilk. But for the immediate future, Winkler says Smart "must focus on how we can maximize potential of the Fortwo and Forfour. That is strategy number one." Read more over at What Car?. A Mercedes-Benz E300 Bluetec Hybrid made the 1,223-mile trek from Africa to the UK on just one tank of fuel. Driven by Andrew Frankel of Autocar, the diesel hybrid left Tangier, Morocco with a full tank of gas (using the optional 80-liter fuel tank), and arrived in Goodwood with the car indicating 100 miles of range left. Frankel and his co-driver averaged 61.2 miles per gallon (73.6 mpg UK) on the intercontinental journey through four countries, despite elevation changes and a traffic jam. See the first video below for more information, or check out the article at Carscoops. Duke Engines promises simplicity and efficiency from the axial engine it's developing. Rather than lining up the cylinders, this engine arranges them in a circle, which allows Duke to avoid unnecessary weight. The five-cylinder, four-stroke motor manages the same amount of powerstrokes per revolution as a standard six-cylinder mill, but weighs 30 percent less. It also has much fewer parts, says Duke. Its high compression ratios mean more power with less fuel, which adds up to more efficiency and fewer emissions. The second of the two videos below, which we first found over at Sploid, explains Duke's axial engine. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Related Gallery Smart Roadster Patents Related Gallery Mercedes-Benz E400 Hybrid and E300 BlueTec Hybrid: Detroit 2012 Photos View 13 Photos News Source: Carscoops, What Car?, Sploid via World Car Fans Green Mercedes-Benz smart Fuel Efficiency Technology Emerging Technologies Diesel Vehicles Hybrid Videos recharge wrapup diesel hybrid smart roadster

Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Fastest cars in the world by top speed, 0-60 and quarter mile

A claim for the title of “Fastest Car in the World” might seem easy to settle. ItÂ’s actually anything but: Are we talking production cars, race cars or customized monsters? And what does “fastest” even mean? For years, car publications have tended to define “fastest” in terms of an unbeatable top speed. ThatÂ’s distinct from the “quickest” car in a Usain Bolt-style dash from the starting blocks, as with the familiar 0-60 mph metric. Professionals often focus on track lap times or elapsed time-to-distance, as with a drag racer thatÂ’s first to trip the beam of light at the end of a quarter-mile; or the 1,000-foot trip of nitromethane-powered NHRA Top Fuel and Funny Car dragsters. Something tells us, however, that you're not seeking out an answer of "Brittany Force rewriting the NHRA record books with a 3.659-second pass at a boggling 338.17 mph." For most barroom speed arguments, the focus is firmly on cars you can buy in showrooms, even if many are beyond the financial means of all but the wealthiest buyers and collectors. Here are some of the enduring sources of speed claims, counter-claims, tall tales and taunting dismissals that are the lifeblood of car enthusiasts – now with EVs adding an unexpected twist to these passionate pursuits.   Fastest from the blocks: 0-60 mph Thirty years ago, any car that could clock 60 mph in five seconds or less was considered extremely quick. Today, high-performance, gasoline-powered sedans and SUVs are routinely breaking below 4 seconds. As of today, the 2023 Dodge Challenger SRT Demon 170 crushes all with a 0-60 mph time of just 1.66 seconds. That's simply absurd, but keep in mind the Demon was engineered with the single-minded purpose of going fast in a straight line. It's also important to realize that direct comparisons are difficult, because not all of these times were accomplished with similar conditions (prepped surfaces, adjustments for elevation and so on). The moral here is to take these times with a tiny grain of salt. After the Dodge, the Rimac Nevera comes in with an officially recorded 0-60 mph time of just 1.74 seconds. EVs crowd the quickest list, with the Pininfarina Battista coming in a few hundredths slower (1.79 seconds) than the Nevera and the Lucid Air sapphire (1.89 seconds) right after that. Eventually, you arrive to the Tesla Model S Plaid, which has a claimed 1.99-second 0-60 mph time, though instrumented testing by Car and Driver shows it accomplishes the deed in 2.1 seconds.