2011 Audi A8 A8 on 2040-cars

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Electric turbos promise big performance and efficiency gains in the near future

An electric turbo system boosts efficiency between 15 and 20 percent, according to Audi.
Turbochargers, like acoustic guitars, use moving air to create magic. And electric turbochargers, like electric guitars, provide the ability to amp up that magic to amazing new levels.

Audi reveals all-new R8 ahead of Geneva debut

This year's Geneva Motor Show is shaping up to be an absolutely orgy of supercars, but though there will be many that will surely outperform it, few have been as hotly anticipated as the arrival of the all-new, second-generation Audi R8. And here it is. Based around an all-new Audi Space Frame chassis, the new R8 is constructed of a higher proportion of aluminum and carbon fiber than its predecessor. The result is a frame that weighs 15 percent less at just 441 pounds – yet is 40 percent more torsionally rigid - tipping the scales at 3,205 lbs in top spec. Into the middle of that frame Audi has installed a revised version of its 5.2-liter V10, eschewing turbochargers but incorporating new technologies. While other powertrain options are expected to follow, Ingolstadt has gone straight for the top of the range at launch: the 'base' V10 model kicks out 540 horsepower and 398 pound-feet of torque to reach 62 miles per hour in 3.5 seconds and a top speed of 201 mph. The upgraded V10 Plus, however, turns those figures up to 610 hp and 413 lb-ft to reach 62 in just 3.2 seconds, 124 in under ten and a 205-mph top speed. All the while, Audi has also equipped the new ten-cylinder engine with both direct and indirect injection, stop/start and cylinder deactivation systems to cut fuel consumption by 10 percent. It also boasts dry-sump lubrication and a variable exhaust system. Power is transmitted to the road through a seven-speed dual-clutch transmission, a mechanical diff and a revised Quattro all-wheel drive system that can send 100 percent of available torque to either the front or rear axle. Aluminum wishbones suspend it all on 19-inch wheels (or optional 20s), with available variable steering and carbon ceramic brakes (optional on the V10 and standard on the V10 Plus). Underbody aerodynamics generate more downforce and a more slippery form, aided by a deployable rear spoiler (or a fixed carbon wing on the Plus model). All those tantalizing greasy bits are cloaked in fresh aluminum sheet-metal, riding on a track that's 1.6 inches wider: the whole shebang stretches 14.5 feet long, 6.4 feet wide and 4.1 feet high, riding on an 8.7-foot wheelbase. Among the myriad new technologies developed for the new R8 are the full LED headlights with optional laser high beams (where they're legal, at least, which currently doesn't include these United States).

Audi tops BMW and Mercedes in luxury sales

April was a good month for Audi, as the four-ring automaker beat out both Mercedes-Benz and BMW in sales. Bloomberg reports that it was America's appetite for CUVs like the Q5 and ancient Q7 that helped Audi move nearly 153,000 units around the globe. It's not all good news, though. Audi's worldwide sales only jumped by 2.5 percent, compared to BMW and Mercedes, whose sales increased 5.6 and 11 percent, respectively. On top of that, BMW is still the best-selling brand (of the three, anyway) so far in 2015, outselling Audi by roughly 9,000 units and Mercedes by about 23,000 vehicles. Considering the faster growth of its rivals, it's unclear if Audi will be able to hang onto the monthly sales crown beyond April, or if BMW will continue its reign as the world's biggest luxury automaker.