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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.

Mercedes-AMG to phase out 5.5-liter V8 after next year [UPDATE]

UPDATE: A previous version of this story indicated that AMG's 6.0-liter twin-turbo V12 was still mated to a five-speed automatic transmission, however the latest models (including the S65 AMG sedan and coupe, SL65 roadster and G65 sport-ute are equipped with the newer seven-speed unit. Mercedes also reached out to point out that the 5.5-liter engine will be phased out gradually, not overnight. There's a lot to love about AMG's 5.5-liter twin-turbo V8. It produces as much as 577 horsepower and 590 pound-feet of torque, and delivers blistering performance to even the heaviest of vehicles. But try not to get too attached, because like its 6.2-liter, naturally aspirated predecessor, it's not long for this world. The latest word comes from Autocar, which reports that Mercedes will release the last applications for the 5.5 biturbo within these next two calendar years in the new GLE63 AMG and upcoming S63 AMG convertible. After that, even though it was only introduced in 2011, it will be phased out. Fortunately Affalterbach has a worthwhile successor already in place in the 4.0-liter twin-turbo V8 from the Mercedes-AMG GT. The smaller powerplant, already in store for the new C63, is already producing 503 hp and 479 lb-ft in S spec. That's still shy of the larger unit's output, but where the 5.5 is nearing the end of its production cycle, the 4.0 is just starting out. Of course the 4.0-liter biturbo isn't the only engine AMG is making these days. Smaller models (based on the front-drive platform) employ the 45-designation, high-output 2.0-liter turbo four. Models at the very top of the lineup, however, use a 6.0-liter twin-turbo V12 that may be a dinosaur, but with 621 hp and 738 lb-ft of torque on tap, still can't be beat.

Weekly Recap: Mercedes, Volkswagen spend big as import automakers invest in North America

Import automakers are on a building frenzy in North America as resurgent car sales have prompted companies to expand their manufacturing footprints to meet rising demand. That was evidenced this week when Mercedes-Benz announced plans to build a $500-million factory to produce the Sprinter commercial van, and Volkswagen confirmed a whopping $1-billion investment to expand its massive plant in Mexico. Meanwhile Jaguar Land Rover reportedly wants to build a factory in North America, but not for at least three years, and Hyundai is said to be expanding in the southern United States. The common thread in all of this expansion? Trucks, time and money. Mercedes wants to capitalize on the burgeoning work van segment in the United States and will break ground in 2016 on a 200-acre site in Charleston, SC, to build the next-generation Sprinter. The site will have a paint shop, body shop and an assembly line, and 1,300 people will be employed when production ramps up. Why do this, when Mercedes has immense van operations in Germany? It's cheaper to build in the US for the US market. Building locally allows Mercedes to avoid import taxes, forego a complex shipping process that involves partially disassembling German-built Sprinters and naturally, reduces the time it takes to deliver finished trucks to their buyers. "This plant is key to our future growth in the very dynamic North American van market," Volker Mornhinweg, head of Mercedes-Benz Vans, said in a statement. He was speaking about Mercedes and vans, but another German automotive giant, Volkswagen, had similar motives for its mammoth expansion plans in Puebla, Mexico. The added space and production capacity will allow VW to build a three-row version of the Tiguan, and provide another crossover for its US lineup that's light on SUVs. The current Tiguan has two rows. The factory will be able to churn out 500 units daily of the larger variant, and they will be sold in North and South America. It will arrive in the US in mid-2017, a spokesman told Autoblog. VW also plans to build another crossover, a midsize seven-passenger vehicle, at its growing Chattanooga, TN, site. "Localization has become key to safeguarding our competitive position on the global market, and manufacturing the Tiguan in Mexico will bring production closer to the US market," Michael Horn, CEO of Volkswagen Group of America, said in a statement.