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BMW M4 versus Audi RS5 | Autoblog Podcast #546

On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Reese Counts. We debate the merits of the BMW M4 and the new Audi RS5 and our hopes for the refreshed Mercedes-AMG C63. We also discuss the state of Cadillac, the future of the Ford Fusion and the rumored Mercedes-AMG competitor to the Porsche 718 Boxster and Cayman. Autoblog Podcast #546 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2018 BMW M4 versus 2018 Audi RS5 Cadillac and Mercedes-AMG sport coupes The state of the luxury car industry The future of the Ford Fusion Replacement for the Mercedes-Benz SLC Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: Design/Style Podcasts Audi BMW Cadillac Ford Lexus Lincoln Mercedes-Benz Convertible Coupe Crossover SUV Luxury Performance bmw m4 mercedes-amg c63

Audi debuts all-new R18 E-Tron Quattro with novel secondary hybrid system

This is the new Audi R18. It looks like the Bond villain of race cars (it has red running lamps), and if Audi's past is any indication, it'll prove difficult to beat in the LMP1 class of the 2014 World Endurance Championship.
The car's full name is the Audi R18 E-Tron Quattro, just like last year's car. Also like last year's car, the new R18 draws its power from a V6 turbodiesel, which powers its rear wheels, and Audi's E-Tron hybrid system, which runs its front axle. Unlike last year's car, though, this R18 has a secondary hybrid system. Audi has fitted the V6 with an electric turbocharger and figured out how to capture waste heat generated when the engine reaches its boost limit. That power can then be stored and fed back into either the turbo or the front axle's hybrid system under acceleration.
There are a number of changes to the body on the new car, forced in large part by series regulation changes. The car is narrower, particularly at the front, but it's also taller. The front end is set off by a new wing, as part of a new WEC regulation. Audi seems quite pleased about this, citing an improvement in front-end downforce and a reduction in cost. Like Formula One, the WEC contenders now have to contend with a ban on the so-called blown diffuser, which forced exhaust gases over the diffuser, creating downforce. That's necessitated some changes from Audi, although as we have no rear shots of the car, we can't tell you what it looks like.

Audi scores 100th LMP win

Loïc Duval, Tom Kristensen and Allan McNish took the No. 2 Audi R18 E-Tron Quattro to victory at this weekend's Six Hours of Austin at the Circuit of the Americas, marking the 12th victory for the R18 body and the 100th LMP overall victory for Audi since 2000. The milestone victory also saw a second R18, driven by Marcel Fässler, André Lotterer and Benoît Tréluyer, take third place.
Audi's LMP boss, Chris Reinke pointed out the poignancy of snagging the brand's 100th victory in the US, saying, "For Audi, it's a very special result because it was the 100th victory in LMP racing. We celebrated the first victory int he USA as well, in 2000. What could be sweeter than achieving this milestone here?" It wasn't all easy going, though, as the team was racing at COTA for the first time, and the No. 1 car had more than a few difficulties.
This victory marked the 12th for the R18 since it started racing in 2011. For comparison, the R15 TDI only managed three victories between 2009 and 2011, and the R10 TDI took 22 wins between 2006 and 2008. Those cars are overshadowed by the original Audi R8 racecar, which won 63 races between 2000 and 2006. Take a look below for the full press release from Audi, and additional quotes from team members.