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.
The rotary engine is world-renowned for many things, but fuel-efficiency isn't one of them. Mazda wants to make Wankel's masterpiece the poster child for its hydrogen-powered endeavors, so it's considering offering a dual-fuel version of the engine in its next RX-badged offering.
According to AutoExpress, Mazda's RX-8 Hydrogen RE vehicle will evolve into a new model, dubbed the RX-9, and is rumored to be motivated by a hydrogen-gasoline powertrain that will offer 20 percent better fuel economy and emissions over a traditional gasoline-powered Rotary. The rear-wheel-drive coupe will take styling cues from the Taiki concept and a dash-mounted switch allows drivers to toggle between gasoline and hydrogen fuel systems. For city driving, the hydrogen setting will be employed, which will reduce fuel consumption (at the expense of a 20 percent drop in power), while the gasoline system can be employed when drivers desire more performance.
Mazda's goal is to make the rotary engine's performance, fuel economy and emissions up the level of gasoline-electric hybrids, and if AE's sources are to be believed, the hydrogen-powered RX-9 should arrive in 2012.
Note to all you celebs and journos driving around in BMW Hydrogen 7s: be careful where you go in New York and New Jersey. While taking the uber-clean car for a joyride, The New York Times was informed it was not to drive through either the Lincoln or Holland Tunnels or on the lower level of the George Washington Bridge. It seems that the Port Authority of the two states isn't thrilled with the idea of 17.5 pounds of liquid hydrogen moving about its crowded thoroughfares, fearing a disaster of Hindenburg-like proportions. It so happens that our own Alex Núñez also just had the Hydrogen7 recently, and he's provided us with a copy of the relevant bit of paperwork which the Times refers to. You can read about the Hydrogen7's visit to the AutoblogGreen Garage at our sister site on August 1.
Seriously though, BMW has done an excellent job of ensuring safety on the Hydrogen 7. There are numerous mechanical and electronic systems designed specifically to be sure that any hydrogen let loose is done so in a controlled manner. We're sure that the last thing the bosses in Munich want on their hands is the negative publicity associated with a mishap involving a celebrity, dignitary.... or innocent bystanders in the New York metropolitan area.
Hydrogen has been touted as a viable fuel source for decades, and seemingly every day, some new or upcoming hydrogen-powered milestone is reached or discussed. However, in nearly every case, hydrogen is being touted as a standalone fuel source. But what about using pure hydrogen mixed with gasoline to increase fuel economy and reduce emissions?
Ronn Motors, of Texas, has built a car it claims will do does just that. Called the Scorpion, the engine is a 3.5-liter, six-cylinder VTEC from Acura, equipped with two turbos and an intercooler to take it from 280 hp to 450 hp. The turbo'd six is connected to an on-demand hydrogen system that breaks down water molecules and holds them in a non-pressurized tank which doesn't necessitate the need for a hydrogen refueling station. The hydrogen is drawn through the intake manifold and between 30 and 40 percent hydrogen is mixed with the gasoline. As less gas is used, Ronn Motors says the Scorpion can do 40 mpg.
DuPont Registry just named the Scorpion a Publisher's Choice as "one of America's first premium eco-exotics." True, the Tesla might be more eco, but to our eyes the Scorpion (rendering) has got the exotic thing properly nailed. But when can you get one? According to Ronn, the car will be out this fall. And when you want to get it off the lot, the 2,100-pound Scorpion will supposedly take you to 60 in no more than 3.5 seconds. Ronn will probably even throw in a full tank of gas... and water. You'll need to provide the take-home money: $150,000.
The undisputed champion of hydrogen fuel cell SUVs at the Nurburgring has been crowned: the Nissan X-Trail FCV. The winning time: 11:58. Of course, it's the winning time because it's the only time -- a hydrogen fuel cell vehicle has never ran the 'Ring before.
After piloting the 120 bhp X-Trail around the world for two years, Nissan engineer Frank Eickholt, decide it was time to take it to the track. The €1.3 million X-Trail was apparently hampered by moist tarmac, so you can expect a redo at some point in the future. Just when you thought the 'Ring craze was as hot as it could get, here come the hydro-powered vehicles to... pour some water on it...
After being asked what the next President of the United States could do to help Detroit's automakers, Rick Wagoner, head honcho at General Motors, responded that his company could use an injection of cash for research and development into new, potentially green technology. Also mentioned were additional incentives for consumers to purchase those vehicles once the automakers actually produce them. Neither of these suggestions should be shocking to anybody paying attention to the Detroit 3's recent financial woes. Much of the admittedly meager R&D budget is already being spent on new technologies such as hydrogen fuel cells and electric drive systems, including the extremely important lithium ion battery.
Federal aid in the form consumer incentives would allow automakers to offer eco-friendly vehicles at potentially profitable prices while still being in the target range of many consumers. In the past, tax credits for hybrid vehicles have helped move that technology along when it was in its infancy. This latest meeting hosted by presidential hopeful Barrack Obama once again indicates how important the emerging green-auto sector and health of the Detroit auto industry in general will be in the coming election.
Volkswagen has shown off its Tiguan HyMotion Fuel Cell Concept for the first time in California. The five-passenger SUV, based on the Volkswagen Tiguan, features a hydrogen fuel cell powering an electric motor. The electric motor may also pull power from a 6.8 Ampere-hour lithium-ion battery that is recharged by recuperating braking energy. The VW hybrid generates 107 horsepower under normal conditions. With assist from its auxiliary energy battery, the total output increases to 134 horsepower. According to VW, that is enough power to push the Tiguan HyMotion to 60 mph in about 14 seconds and a top speed is 93 mph.
While the performance is less-than-stellar, you have to remember that the Tiguan HyMotion produces zero tailpipe emissions. Yes, the only thing coming out of the pipe is clean water vapor. It's a concept, however, so don't expect to see it in showrooms anytime soon.
Thanks to an astute reader, we now have further proof that owners of Mazda's rotary powered RX-8 wish they were driving a Ferrari instead. Not that we blame them or anything, as the Prancing Horse has been plastered on many of the finest sportscars that this world has ever seen. What we don't recommend, however, is actually attempting to replicate a Ferrari of your own with a Mazda RX-8, as the owner of said car seen in our gallery has done. It's not that the car is an RX-8, a fine vehicle in its own right,– but a Ferrari it is not. The rotary is a fun engine to wring out on the way to its 9,000 RPM redline, but it just doesn't quite match the aural pleasure that a fine Italian V12 is able to deliver.
This particular Mazda-rrari was caught at a mall in Denton, Texas, and we believe it's probably the only one in existence. Before you get real upset about all that's been done to it though, remember that it could be worse. Much, much worse. Just don't tell the guys in Maranello, they tend to get rather upset about this kind of thing.
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.
When automakers reach out to the lesbian, gay, bisexual and transgender (LBGT) community, there's always a risk involved. Just ask Ford, which had to deal with the American Family Association's boycott just for advertising in gay-centric publications. General Motors apparently doesn't care what associations like the AFA think and is reaching out to the LBGT community for its Project Driveway program that places a hydrogen fuel cell-powered Chevy Equinox in the garages of ordinary people for three month-long test drives. Travis Parman, who GayWheels.com cites as the automaker's media relations manager for the LBGT community, says "Our goal is to get Equinox Fuel Cell test drivers that are as diverse as America. And since the LGBT community tends to have a lot of early adopters, we wanted to reach out and encourage LGBT residents to apply." GM is looking for people who live in specific zip codes in New York, Washington D.C. and Southern California to apply. We're not sure if being anything but heterosexual will help your cause, but at least GM is saying it wouldn't hurt.
