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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.

Race recap: 2016 Monaco Grand Prix gets very wet, a little wild

More than at any other race, the Monaco Grand Prix question is: which combination of demolition derby, Safety Cars, and bad pit strategy will decide the podium? Last year Lewis Hamilton's late, confounding pit stop cost him victory. The year before, Nico Rosberg's qualifying "mistake" put him on pole and Mercedes-AMG Petronas' pit strategy sealed his win – good for Nico, bad for Hamilton and the rest of the field. In 2013 Hamilton dropped from second to fourth when he lollygagged in the pits. In all three years, Rosberg won. The new X factor for 2016: a Red Bull resurgence that helped Daniel Ricciardo clinch his first career pole. Nevertheless, bad pit strategy had its say in the results. Ricciardo built up a 13-second lead by Lap 15 in spite of heavy rains that forced the Safety Car to lead the first eight laps of the race. Ricciardo stopped on Lap 23 to switch to intermediate tires for the drying track, ceding the lead to Hamilton. Hamilton pitted from the lead on Lap 31 for softs, then Red Bull pulled Ricciardo in again on Lap 32 and made a snap decision to put him on ultra softs, but the tires weren't ready when Ricciardo reached his pit box. What should have been a three-second pit stop turned into a 13.6-second pit stop. Ricciardo left the pits as Hamilton came down the straight and the Aussie lost the lead into the first corner. Despite two attempts to pass later in the race, Hamilton finished first, the Aussie second. It's the second race in a row where pit strategy cost Ricciardo a near-certain win. Conversely, Force India nailed both tire strategy and pit timing with Sergio Perez. The Mexican started in eighth but got into third before half the race was done, passing four cars in the pits, and finished on the podium's final step. Otherwise the order barely changed from about half distance, with Ferrari driver Sebatian Vettel in fourth, followed by Fernando Alonso in the McLaren, Nico Hulkenberg in the second Force India, Rosberg in the second Mercedes, Carlos Sainz for Toro Rosso, Jenson Button in the second McLaren, and Felipe Massa taking the final point for tenth for Williams. Storms didn't only hover over the area, though – dark clouds hung around several teams and drivers. Mercedes' reliability is no longer so reliable. The Silver Arrows suffered engine issues on both cars in qualifying, and Hamilton's problem almost kept him from setting a time in Q3.

Mercedes introduces the details of the C450 AMG 4Matic

We saw the AMG Sport models joining the C-Class line in Detroit, but Mercedes has waited until the press launch of the Mercedes-AMG C63 to give us the details. In case you've forgotten about how this new puzzle piece fits, there's Mercedes-Benz, there's Mercedes-AMG, then there's the Mercedes-Benz AMG Sport line slotted in between for those who want sporty luxury but not too much of either. This is the second variant in that line-up, and also the second to get V6 power, following the GLE450 AMG Coupe. In the case of the C450 AMG 4Matic, that means a twin-turbo six-cylinder with 367 horsepower and 383 pound-feet of torque, an increase of 38 hp and 29 lb-ft over the C400 4Matic on which it's based. It goes much closer to proper AMG territory with its looks and features, with that sharp, chrome-trimmed lip in front, the oblong lower intakes, lightweight wheels, and a "special AMG badge" on the front fenders. In back, the sedan gets a spoiler on the trunk, the wagon gets a roof spoiler. There's a suspension highly derivative of that on the C63 AMG, with three-stage dampers. So too the five drive modes laid out like on traditional AMGs, the 7G-Tronic automatic transmission, the ESP with Curve Dynamic Assist, and it will even sound close to an Affalterbach special thanks to a sports exhaust. Cabin occupants can play the real deal with sport seats and a flat-bottomed wheel with red cross-stitching. We don't have a price yet, but there will probably be plenty of room between the price of the AMG C63 and the $48,950 C400 4Matic to make buyers happy. The press release below has all the info. Related Video: The new C-Class models from Mercedes-AMG: Mercedes-AMG C 63 and Mercedes-Benz C 450 AMG 4MATIC Mercedes-Benz C 450 AMG 4MATIC: Second AMG sports model with V6 power Driving Performance – the AMG brand claim and typical character traits can now be experienced by an even broader target group. The new C 450 AMG 4MATIC expands the product range of the sports car and performance brand within Mercedes-Benz with another new AMG sports model. As an attractive entry into the world of AMG, the C 450 AMG 4MATIC combines a 270 kW (367 hp) 3.0-litre V6 biturbo engine with a permanent Performance all-wheel-drive system and sophisticated suspension technology adopted from the Mercedes-AMG C 63. This all results in fascinating driving performance and the hallmark emotional expressiveness of the brand.