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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.

2015 Chinese Grand Prix shines bright sun on the dark days of racing

Yes, we tuned into the Formula One Grand Prix in Shanghai China to see a race. But we all know we really tuned in to see if Ferrari, or any other team, could make it a competitive race with Mercedes-AMG Petronas. Based on qualifying, things didn't get off the best of starts: Lewis Hamilton made it four-out-of-four at the front, leading all three Free Practice sessions and then taking pole position in his Mercedes. Nico Rosberg is making the most of his time in the simulator, getting closer to Hamilton as the months go by. This time he lined up in second, just 0.042 in arrears. Ferrari did its best to temper expectations after Malaysia. Even though Sebastian Vettel qualified in third, almost a second behind Hamilton, the Scuderia's race pace is still considered a danger. Kimi Raikkonen's final hot lap went sour in Turn 3 and dropped the Finn to sixth place on the grid. In between the Ferraris, Williams is another team desperately working to maintain its advantage, and both of its drivers capitalized on Raikkonen's misfortune. Felipe Massa took fourth, Valtteri Bottas was in fifth. Daniel Ricciardo led the Infiniti Red Bull Racing charge in seventh, ahead of Romain Grosjean in the Lotus earning a spirits-lifting eighth. The two Saubers continue to show how good the Ferrari engine is, with Felipe Nasr taking ninth position and teammate Marcus Ericsson in tenth. Yet when the lights went out, so did the racing, for the most part. At the end of the first lap, because of some excellent moves by Raikkonen on both Williams' and a terrible start by Ricciardo that dropped him to seventeenth, the order was Hamilton, Rosberg, Vettel, Raikkonen, Massa, Bottas, Grosjean, Nasr, Ericsson, and Pastor Maldonado in the Lotus rounding out the top ten. At the end of the race, the only positions that had changed were the final two: Ricciardo had a laps-long battle with Ericsson, passing, getting repassed, then passing again to take ninth for good, with Ericsson finishing tenth. Maldonado suffered the worst in a battle with Jenson Button in the McLaren, when Button misjudged the entry into Turn 1 for a pass and clouted the back of the Lotus. Button was able to finish but Maldonado had to retire. Yes, there were some decent moments in between, like Bottas getting by Massa at the start, then Raikkonen getting past Massa in the first few corners and the Finn's move on Bottas also letting Massa through.

Lamborghini, Aston Martin, Mercedes-AMG, Porsche and Koenigsegg Lego sets coming this summer

Lego has announced a slew of new automotive-themed sets. As is typical fashion for brand of building toys, the subject matter leans toward ultra-exotic, ultra-expensive vehicles, ranging from a $139,000 Mercedes SL63 on the low end to a $3 million Koenigsegg Jesko Absolut on the high end. If you can't afford those cars in real life, soon you'll be able to build your own plastic models of them. Some of the real-world counterparts aren't obtainable no matter what the cost. Take the Lamborghini Lambo V12 Vision Gran Turismo, for example. The one-off concept was designed by Lamborghini exclusively for Gran Turismo, the PlayStation racing simulator. However, Lamborghini did build a 1:1 version for the physical world, with the 808-horsepoewer hybrid V12 from the Sian FKP 37 beneath its bodywork. The Lego version is part of the company's Speed Champions line, which measure about 6 inches long. It does an excellent job of capturing the original's insectoid look and Y-shaped taillights. The set is made up of 230 pieces and will retail for $26.99. This is Lego's first Vision Gran Turismo car but we hope to see more.  Also joining the Speed Champions line are two 2-car sets. An Aston Martin-themed set pairs a Vantage safety car with an AMR23 Formula 1 racer. Both are finished in AMR's bright green with actual sponsor logos. The set contains 564 pieces and will cost $44.99. Also arriving as a 2-car set are a pair of Mercedes-AMGs. A black G 63 and yellow SL 63 Roadster, along with a pair of sunglasses-clad bros, make up the 808-piece set. It also retails for $44.99. All three Speed Champions sets arrive on June 1, 2024. If you're looking for something a bit more advanced and detailed, Lego also offers the Technic line. First up is a Porsche GT4 e-Performance, a 1,000-horsepower race car based on the 718 Cayman. This set can also function as a remote controlled car that moves forward, backward, and steers via a downloadable smartphone app. The 834-piece set costs $169.99. Last but not least, there's the Koenigsegg Jesko Absolut, a model of the Swedish supercar that is said to have a top speed of over 300 mph. The model does an admirable job of capturing the car's 0.278 Cd drag coefficient, considering it's comprised of 801 individual plastic bricks. This set will retail for $49.99 and, along with the Porsche, comes out August 1, 2024. Related Video LEGO Speed Champion Build: 1968 Ford Mustang Fastback