1979 Mazda Rx-7 Gs Coupe 2-door 1.1l 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 Though that car was withdrawn with turbocharger failure 71 laps in, its diesel powerplant left an indelible impression on the racing community, and that's something Mazda hopes to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.

Sell your own: 2004 Mazda RX-8

Looking to sell your car? We make it both easy and free. Quickly create listings with up to six photos and reach millions of buyers. Log in and create your free listings. Combine "sports car" with "user-friendly" and, in most forums, you have yourself an oxymoron. Sports cars are – by definition – sporty, but rarely do they qualify as easy to use. One that did and, regrettably, has faded from the scene is Mazda's RX-8. Initially launched in 2003, and out of production within roughly a decade, the RX-8 was perhaps the rotary-powered answer to a question few – at the time – were asking. Happily, Mazda produced it anyway. With its front mid-engined platform, freestyle doors and +2 seating, the RX-8 came as close to offering day-in, day-out utility as anything this side of an extended-cab pickup. And its nod to practicality did little, if anything, to diminish the essential goodness of the menu. Mazda's design team provided a high-revving rotary, nimble handling and almost telepathic steering, combining them into a frenzy-filled dollop of locomotion. The result was no more than mildly fast and furious, but in properly motivated hands the RX-8 delivered a high level of entertainment for a relatively modest outlay. This for-sale example, a 2004 RX-8 with automatic transmission, requires just $6,000 and – not incidentally – the ability to buy into its premise. The automatic will be perceived by many to be a negative, but might also suggest a more gentle ownership history. And without benefit of a clutch and shifter, the new owner can concentrate on the driving, with the Mazda's absurdly direct steering and slot-car cornering. The asking price is on the high side (book average is about $5K), but know that similar cars might bring upwards of $8,000. And at 91,000 miles it's been used, but perhaps not used up. Related Video: Mazda Used Car Buying Buying Guide Ownership Coupe Performance

This is the 2017 Mazda MX-5 RF targa-roof fastback

We knew Mazda was going to introduce a new Miata variant ahead of the 2016 New York International Auto Show, but the smart money was on a power retractable hardtop version that largely mirrored the last-gen car's folding number. So it was a surprise when the new 2017 Mazda MX-5 RF – retractable fastback – drove onto the stage sporting wild buttresses and a hide-away targa roof panel. The buttresses lift up and swallow the rear window and roof panel in a matter of seconds, and then the buttresses snug back down. This leaves a hoop spanning the buttresses, but at least it's done up in black to be less visually apparent. The result is more of a targa roof experience, rather than the previous PRHT which gave occupants essentially the same experience as the soft-top with the top down. No matter. The result is stunning, and will differentiate the RF even more from the standard MX-5. Mazda designers took extra care to make sure the interface between the MX-5's dramatic fenders and the trailing edges of the roof support provided enough visual drama. Mission accomplished, we'd say. We can't take our eyes off that part of the car. View 13 Photos As you might expect, mechanical changes seem to be minor, although we'll be asking for detailed specs. Both the 1.5- and 2.0-liter engines will be available globally, but only the 2.0-liter Skyactiv-G engine will be sold in the US. The roof can be operated at up to 6.2 mph. Mazda claims the truck space is unaltered from the soft-top model. We don't yet know how much, if any, the RF's mechanism adds to the bantamweight roadster, nor the premium it'll command. Expect those details closer to launch. Related Video: