Though the rotary engine certainly has its fair share of detractors, many who find themselves behind the wheel of a Wankel-powered machine from Mazda fall in love with the engine's zippy and rev-happy characteristics... including this particular blogger, who purchased a new RX-8 back in 2004. Regardless, nobody can deny that the rotary has always been a thirsty little bugger, especially when compared to powerplants with similarly rated displacements.
We've been hearing for the last few years – and seemingly every other time a new rendition of the Wankel engine came to market – that the next version of Mazda's rotary would address complaints about its high fuel consumption and emissions. Perhaps the early projections about the so-called 16X engine were a wee bit premature. According to Seita Kanai, head of R&D at Mazda:
The 16X demonstrated the possibility, but that performance is not good enough. We are doing R&D which will incorporate more new technology... The 16X is more a profile of a rotary still in our concept stage. It needs more evolution.That really doesn't sound all that confidence inspiring to us. At this point, only time will tell if the 16X will actually be ready for prime time when the long-rumored next-gen rotary-powered car from Mazda hits the scene in 2012 or so.
One of the coolest concept cars here at the Tokyo Motor Show isn't even new. In fact, it's almost forty years old. Originally displayed at the Tokyo show in 1970, this Mazda RX-500 Concept features styling similar to the legendary Ferrari 250 GTO Breadvan, gullwing doors that swing forward, and a 491cc rotary engine just behind the seats. Weighing in at just 1873 pounds, the 247-horsepower concept was said to have reached nearly 150 mph on Mazda's test track.
The car was recently restored in partnership with the Hiroshima City Transportation Museum where it has apparently been on display for the last year. Lucky for us, they decided to bring it to the show for us to enjoy as well.
Hard as it may be to believe, the word "hummer" didn't always bring up visions of obnoxious, polarizing SUVs. In fact, there was a time not so very long ago that uttering that word evoked something entirely different, namely cars powered by Wankel rotary engines. For the past three decades, the world's sole purveyor of rotary-powered automobiles has been Mazda. The "Zoom-Zoom" brand has always been a little different from its compatriots. Back in 1963, a young Kenichi Yamamoto was heading up the research department at Mazda and latched on to the concept developed a decade earlier by Felix Wankel. Just as two-stroke engines were all the rage for a time in the early 1990s and fuel cells in the middle of this decade, the Wankel rotary seemed to be the next big thing in the 1960s and early '70s. For a time it seemed every major automaker had licensed the design from Wankel and was trying to commercialize it. Some like NSU did build rotaries while General Motors and Daimler Benz built an assortment of concept cars. By the mid-'70s, all had given up except Yamamoto-san and Mazda. From the original 1967 Cosmo, Mazda has built an unbroken string of hummers culminating with the recently updated 2009 RX-8 R3. The pony-keg sized power plant isn't the only unique element of the RX-8.
