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.
You've got to hand it to Mazda for its perseverance with the Wankel rotary engine design. Ever since it's engineers managed to make it semi-reliable, the turbine-like smoothness of the quick-spinning lump has seen duty in numerous Mazda-branded vehicles, and even a few others as well. Still, despite constant engineering work and updates to the basic rotary engine design, there is a lingering question about the reliability of the design. Most owners seem happy with the engines in their RX, that is, until a seal blows or they forget to keep the oil supply topped up and it fails to restart. Or it floods in the winter, needing a tow. Alright... so there may be a few problems.
To ease the minds of RX-8 owners and owners-to-be, Mazda has reportedly decided to extend the warranty coverage for the 2004-2008 Renesis rotary engine for a period of eight years or 100,000 miles. Mazda even goes so far as to offer reimbursement to those who've spent money on engine repairs before 100,000 miles. This seems like a nice measure made in good faith on Mazda's part. After all, most educated owners of the rotary-powered cars knew what they were getting when these purchases were made, and the engine was already covered under the same basic warranty that comes standard with all Mazda vehicles. Nice work, Mazda.
Mazda's redesigned RX-8 has officially been released into the wild and, surprise, it's exactly the same as the RS model that debuted at the Tokyo Auto Salon, right down to the wheels. Mazda admits that the 2009 RX-8 is simply a mild evolution of the outgoing model, with a few changes to the exterior and interior, along with a couple of mechanical revisions and a new suspension package.
On the outside, the RX-8's shape is largely unchanged, with a new front and rear bumper, restyled front fascia and larger exhaust pipes. Inside, Mazda has redone the instrument panel and included a "variable red-zone" on the tach that indicates when the Wankel is up to operating temperature (similar to BMW's M-powered products).
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