1988 Mazda Rx-7 10th Anniversary Coupe 2-door 1.3l on 2040-cars

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Mazda Skyactiv-D racer first diesel to run at Indy in 60 years

While it may not be touting the old "Win on Sunday, sell on Monday" axiom we all know and love, Mazda recognizes that racing can only improve its cars. And so it's no surprise that the Japanese automaker is testing and refining its Skyactiv-D diesel engine by sending it out on various race tracks around the country - notably being the first diesel ever to compete at Daytona and the first to notch a Grand Am win at Road Atlanta.
Next up? Indy. It has been over 60 years since a diesel-powered machine ran at the Indianapolis Motor Speedway, and the Cummins-powered racer that competed in the 1952 Indy 500 with a 6.6-liter inline-six-cylinder oil-burner was a fast and brutal machine that set a new lap record in qualifying leading up to the race. Though that car was withdrawn with turbocharger failure 71 laps in, its diesel powerplant left an indelible impression on the racing community, and that's something Mazda hopes to accomplish once again.
Mazda says that the diesel engine in its race car is pretty darn close to stock - 51 percent stock by parts count, and 63 percent stock by weight - which means the way it performs in competition is at least a somewhat meaningful way to the stock engine's durability in the real world. Check out the image of the Mazda6 Skyactiv-D racer posing alongside the 1952 Cummins above (click to enlarge) and feel free to peruse the press release below for the rest of the details.

Mazda just restored the 787B's forgotten older brother

Among Mazda's many racecars, none is as famous as the 787B, and for good reason. The 787B remains the only Japanese car and the only rotary-powered car to win overall at the 24 Hours of Le Mans. It wasn't Mazda's only successful endurance racer, though. Before the 787B, there was the 767B. Mazda's 767B racecars competed in the IMSA GTP class at endurance races throughout 1989. They featured 630-horsepower four-rotor engines and were very successful in their class. This newly restored car took first and second place class finishes in five of the six races it participated in, and each finish was in the overall top ten. The one exception was a DNF in which the transmission failed. Twenty-five years after the 767B's glory days, Mazda initiated a complete teardown and restoration of the aged car. The work was done by Downing Atlanta and supervised by former Mazda racers Rick Engman and Jim Downing. (Fun fact: Downing was one of the designers of the HANS device.) The shop has also restored other racecars for Mazda, including one of the 787Bs. The car went through a two-year rehab and will make its track re-debut at the Monterey Motorsports Reunion. The event takes place next weekend at Mazda Raceway Laguna Seca where the track will once again feature the angry shriek of a competition-grade rotary engine. Related Video: Image Credit: Mazda North American Operations Motorsports Mazda Automotive History Racing Vehicles Pebble Beach

Here's what you had to say about the Tokyo Motor Show

We obsessively covered the 2017 Tokyo Motor Show. You, our readers, provided the color commentary. Read on and, of course, leave your comments below. Subaru Viziv Performance Concept: Remember the WRX concept they showed in 2013, and what the production version looked like in 2015? Pepperidge Farm remembers. wooootles 2 foot high wing on the trunk or gtfo :) sc0rch3d Mazda Kai Concept : Dear Honda, this is how you dynamically style a hatchback. Thank you. Dfelix70 Kudos to KODO design. There are so many things I love about this "Kai" car: the awesome split panoramic sunroof, the Jaguar-esque tails (sporting an "eyebrow up"... ala The Rock), a sleek family resemblance to the already beautiful CX-5 and CX-9. Seems suspiciously close to being a production ready Mazda3 — save for a few fanciful bits (door handles, mirrors etc). If it doesn't get too watered down by the time it hits the streets ... take my money! Randy Ross Mitsubishi e-Evolution Concept: As an 06 IX and 12 X owner, this is so upsetting. I will never buy this or care to give it another look. Hope you are glad you killed my favorite track-ready car to produce this electric junk. AcidTonic Picture the GT-R going away for a few years and coming back as an SUV. This is ridiculous. Surely someone in marketing could've came up with another cool name. Evo The Evo sedan is dead, whether this exists or not. I don't mind. Lada1200 Honda Sports EV Concept : I sure would like to see this "less is more" design aesthetic spread to their gas-powered production line. RustyShackleford Love it. I see glimpses of late 1970 Scirocco with Honda flair. Gintonics I just want ONE question answered in the affirmative, and that is... "RWD?" Henadenk AND A FEW FROM FACEBOOK: Toyota's press conference: Wake me up when they talk about the Supra. David Levinson Yamaha Cross Hub Concept: All I can think is modern day Brat, which has its own kind of charm. I'm assuming that it's a unibody design, but it seems happy to be its own thing rather than that crossover pretending to be a pickup called the Ridgeline. Would definitely take the Yamaha over the Honda, although I doubt it'll come to the states. Cole Henry Mazda Vision Coupe Concept: Face: KIA K7, Tail: Aston martin. Harold Shin A bit British, no? Jim Lykas Related Video: News Source: Honda, Toyota, YamahaImage Credit: Subaru, Mazda, Mitsubishi Auto News Green Tokyo Auto Salon Tokyo Motor Show Honda Mazda Mitsubishi Subaru Toyota 2017 tokyo motor show