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Mercedes-Benz releases US-spec 2014 Sprinter details

Last week, Mercedes-Benz released the details for the updated 2013 Sprinter intended for global markets, but this week it has announced what changes are being made to the US-spec version of the van for the 2014 model year, including the Freightliner model. As expected, most of the changes made to the European model will be present on the 2014 Mercedes-Benz Sprinter when it goes on sale in the US, which is expected to be this fall.
The biggest difference between the Sprinter announced last week and the one headed to our shores is what is found under the hood. While European Sprinters will come with diesel engines and offer the availability of a supercharged four-cylinder gasoline or CNG engine, US Sprinters will still offer the 3.0-liter V6 BlueTEC diesel. This year's Sprinter now comes standard with a new base engine, the 2.1-liter four-cylinder BlueTEC diesel. This smaller engine will produce 161 horsepower and 265 pound-feet of torque, and will be paired to a seven-speed automatic transmission; the optional 3.0 V6 puts out 188 hp and 325 lb-ft of torque, and will be mated to a six-speed auto.
Fuel economy for the new Sprinter has not been announced, but Mercedes-Benz has made numerous changes with the goal of improving efficiency. To this end you'll find a new, low-friction rear axle and the optimization for the generator, fuel pump and power steering pump.

Mercedes rules out hybrid supercar, promises SLS successor

The recent Geneva Motor Show was a festival of hypercars, with the presence of not one, but three over-the-top debuts: the Lamborghini Veneno, McLaren P1 and Ferrari LeFerrari. The latter two have hitched their carbon fiber bumpers to the electrification bandwagon by using hybrid-electric powertrains not entirely unlike the propulsion systems we've come to know in cars like the Toyota Prius and Chevrolet Volt. Does that mean the flow of electrons up the four-wheeled food chain will eventually consume our hallowed supercars? Not if AMG has anything to say about it.
AMG Director of Vehicle Development Tobias Moers recently confirmed that not only will there be a successor to the Mercedes-Benz performance division's SLS AMG, he notes that its internal combustion engine will most definitely not be sharing living quarters with an electric drivetrain. Instead, AMG plans to focus on further pushing the power and efficiency envelope of the internal combustion engine and advancing the use of lightweight materials to achieve their goals. The first example of this effort can be seen in the new SLS AMG Black Series that incorporates many weight-saving techniques to shed some 154 pounds from the SLS AMG GT (above), which itself is lighter than the standard SLS AMG.
Furthermore, Moers remarks that his company is happy to leave the hypercar segment to companies like Ferrari and McLaren. He admits that, "Ferrari in the hyper-car segment is still a different brand than AMG. We have to be honest..." So rather than taking the SLS further upmarket to do battle with bulls and stallions, Moers hinted that the next-generation SLS may be joined by another performance model that fits neatly between itself and the C63 AMG.

Ecclestone wonders if F1's upcoming turbo V6s should get augmented sound [w/videos]

While every team on the Formula One grid is worried about making a good showing in this year's championship at the same time as they develop a brand-new car for next year's championship, Bernie Ecclestone and F1 circuit promoters have a different concern: how next year's cars will sound. The current cars use 2.4-liter, naturally-aspirated V8s that can reach 18,000 revolutions per minute and employ dual exhaust, next year's engine formula calls for 1.4-liter turbocharged V6s that are capped at 15,000 rpm and are constrained to a single exhaust outlet. Ecclestone and promoters like Ron Walker believe the new engines sound like lawnmowers and that the less thrilling audio will keep people from coming to races. If Walker's Australian Grand Prix really is shelling out almost $57 million to hold the race, every ticket counts. As a fix, according to a report in Autoweek, Ecclestone "suggests that the only way to guarantee [a good sound] may be to artificially adjust the tone of the V6s."
However, neither the manufacturers nor the governing body of F1, the FIA, think there will be a problem. Ecclestone fears that if the manufacturers "don't get it right" they'll simply leave the sport, but the only three carmakers and engine builders left next year, Renault (its 2014 "power unit" is pictured), Mercedes-Benz and Ferrari are so embedded that it would stretch belief to think they'd leave the table over an audio hiccup - if said hiccup even occurs. And frankly, these issues always precede changes to engine formulas, as they did when the formula switched from V10 to V8; fans, though, are probably less focused on the engines and more on the mandated standardization of the sport and the spec-series overtones that have come with it.
No one knows yet what next year's engines will sound like, but we've assembled a few videos below to help us all start guessing. The first is an engine check on an Eighties-era John Player Special Renault with a 1.5-liter V6 turbo, after that is Ayrton Senna qualifying in 1986 in the Lotus 98T that also had a 1.5-liter V6 turbo, then you'll find a short with a manufactured range of potential V6 engine notes, and then the sound of turbocharged V6 Indycars testing last year at the Indianapolis Motor Speedway. Any, or none of them, could be Formula One's future.