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Mazda6 GX Grand-Am racer goes where no diesel sedan has gone before

There has never been a four-door diesel sedan in the Grand-Am series, until now: The blunt, bewinged grille of the Mazda6 GX has blown right through that wall. It's said that racing improves the breed, but usually the breed has gone on sale when the racing begins. One of the unusual aspects of the Mazda6 GX, on the other hand, is that while the diesel won't go on sale to the public until later this year, it will already have tasted racing blood by the end of the day. That kind of reversal is more likely found with super coupes like the Lexus LFA and Honda NSX.
Mazda has taken class wins at Daytona's 24-hour race a whopping 23 times since 1975, most recently in 2010 with the RX-8 in the GT class. This year the Hiroshima company decided to show off its SkyActiv technology, then turned things up to eleven by opting for its SkyActiv-D instead of the more conventional SkyActiv-G gas engine to run in the new GX class. It will be joined by competitors like the Lotus Evora and Porsche Cayman in the class, nevertheless, at 2.4 liters, it's the smallest engine on the grid.
Time has not been a friend, either - Mazda said that the first five SkyActiv-D engines off the production line went to Speed Source in Coral Springs, Florida, the company that preps Mazda's race vehicles. Still, race driver Jonathan Baumarito on the #70 car said that although the engine's been on the dyno since February of last year, it's only been in the car for about a month and there have been only a couple of test days.

Autoblog Podcast #396

Episode #396 of the Autoblog Podcast is here, and this week, Dan Roth, Steven Ewing, and Chris Paukert talk about the 2016 Mazda MX-5 Miata, the 2016 Jaguar XE, and the 2015 Lexus RC. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the rundown below with times for topics, and you can follow along down below with our Q&A. Thanks for listening!
Autoblog Podcast #396:
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J.D. Power dependability survey is out, but you shouldn't depend on it

J.D. Power has just released its latest automotive dependability survey, which of course has usual suspects Buick and Lexus ranking high. Those are safe and solid findings, surely. But when you look a little closer, there are curiosities. Our Consumer Editor, Jeremy Korzeniewski, offered an explanation a couple of years back for why this survey should be viewed with a degree of skepticism, and his take is worth a re-read. What jumped out at Jeremy were the relatively low spots assigned to Mazda, Subaru and Scion among the ranking of makes. Back in 2016 when he wrote his piece, they were ranked 21st, 23rd and 24th respectively. In this year's survey, Mazda ranks 15th and Subaru 26th, both below the industry average of 142 reported problems per 100 vehicles. (And Scion, of course, is in car-brand heaven.) Now, part of what is going on here is surely the fact that all automotive brands are producing dependable vehicles compared with years gone by, so the degree of variance between the best and worst on the list is not as great as it once was. "For the most part, automotive manufacturers continue to meet consumers' vehicle dependability expectations," Dave Sargent, a J.D. Power vice president, said in a statement. "A 9 percent improvement is extremely impressive, and vehicle dependability is, without question, at its best level ever." That said, when a brand like Subaru, regarded by many as mechanically bulletproof, ranks 26th, it leaves people who know cars scratching their heads. Something there does not compute. The problem, as Jeremy pointed out, is one of methodology: When he wrote his piece, there was no weighting assigned to the problems reported in the survey. And that still appears to be the case. Therefore, a problem with an infotainment system or a loose piece of trim is deemed as serious as a blown engine or leaky transmission. (And yes, infotainment is still the biggest problem across the board.) Jeremy's point: If the categories of problems were weighted, you'd see a different picture. When you look at the Consumer Reports brand rankings (subscription required), you get a very different picture. in CR's rankings, Subaru is No. 6 among brands, which, well, sounds a lot more like it. CR singles out the redesigned 2017 Impreza as a car with some new-model problems. (The BRZ had the fewest.) The two surveys jibe a little more closely when it comes to Mazda, which CR ranks 12th, a drop of six places from previous-year rankings.