Audi S8 on 2040-cars

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2015 Audi S8

You've gotta hand it to the Audi A8. Last year, Mercedes-Benz launched the truly stunning S-Class, putting the rest of the high-dollar luxury flagship class on notice. With the brand-new S-Class turning heads and garnering all sorts of praise from the automotive press, classmates like the BMW 7 Series, Jaguar XJ and Audi A8 started to look, well, old. But Audi didn't see fit to just let its big sedan carry on and let the Mercedes take the cake.
So when Audi refreshed its A8 line for the 2015 model year with only minor updates, I kind of shrugged it off as just a quick way to keep the big sedan fresh until an all-new, hopefully S-Class-trumping version arrives. But then I drove the S8 pictured above, and I'm no longer so sure the Merc's shadow is as big and imposing as it once was.
Spoiler alert: the Audi S8 is simply fantastic.

Audi kills off its 420-hp four-cylinder engine project

Audi's supercar-slapping, fire-breathing four-cylinder concept engine will remain just that, with Autoblog confirming that it has been internally killed off. Speaking at the launch of the TT RS, the engineering boss of Audi's Quattro GmbH division, Stephan Reil, said the Volkswagen Group had stopped all development of the 420-horsepower, 2.0-liter four it showed in the 2014 TT Quattro Sport Concept car (above). Despite previous assurances that Quattro had roles for both the EA888-based engine and Audi's wildly charismatic 2.5-liter, five-cylinder motor, post-Dieselgate reality has killed the smaller engine. "The 400-horsepower EA888 engine is dead," Reil said. The EA888 engine was conceived and developed by the same man behind AMG's powerhouse 2.0-liter four. Friedrich Eichler left AMG to become the Volkswagen Group's gasoline engine development go-to guy, and he was confident the 420-hp engine could be turned into a production car quickly, as was then-Audi development boss, Ulrich Hackenberg. It was even suggested that because the EA888 engine family bolted straight into the Volkswagen Group's ubiquitous MQB small-car architecture, the little powerhouse could be cheaply and quickly dropped into any of the company's cars that needed an image boost. Since then, Quattro has elevated the five-cylinder motor, switching it to an all-alloy block with a magnesium oil pan to cut down its weight while boosting its power and torque levels. Where the four-cylinder engine was shown with 420 hp and 332 lb-ft of torque, the production version of the TT RS's new five-cylinder engine totes 400 hp and 354 pound-feet of torque. The smaller engine's proponents claimed a 0-62 mph acceleration figure of just 3.7 seconds for the concept TT that carried it, and it might not be a coincidence that the all-new TT RS claims exactly the same figure. The 2.0-liter motor had a torque peak that arrived at 2,400 rpm and began to taper off at 6,300 rpm, while its power apexed at 6,700 rpm, thanks in part to a turbocharger that could feed it up to 1.8 bar of air. Flip to the TT RS' data and you're looking at more torque at lower revs and a touch less power, but at higher revs. That's not a lot of wriggle room for the concept engine to operate, especially when the perceived value of the five-cylinder engine is higher than the four, and the four's development and production costs would be higher than the five's.

Audi boss can't say no to F1 program

Audi has been a dominant force at the top rung of endurance racing for over a decade. Still, rumors have fired up again about the possibility of the company making a big switch to Formula 1. The Four Rings' boss Rupert Stadler isn't ready to make that decision yet, but he's not ruling it out. When asked by Auto Express about the potential of Audi entering F1 in the next five years, Stadler gave an intriguing answer. "It's something we're looking at, but then we're always looking at it and many other things. But I can't say yes or no," he said. While not at all a confirmation, that's hardly an outright denial, either. According to unnamed insiders speaking to Auto Express, Audi is under pressure from Volkswagen Group to leave the FIA World Endurance Championship. Right now, the Four Rings is competing directly against its corporate sibling Porsche. While that might make for a good rivalry on the track, it doesn't necessarily make sense financially. Rumors last year suggested that Audi might leave the WEC and DTM to finance the F1 project. Two possibilities were proposed at the time: act as engine supplier to Red Bull or buy Toro Rosso to run a whole new team. Stadler's non-denial might also indicate that Audi's view on F1 is shifting. In the past, the company's opinion has been much more obvious. Last year, Audi Sport tweeted that the rumormongering was "pure speculation." As far back as 2011, the brand's motorsport boss said grand prix racing had "no relevance to the road." Related Video: