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Driving classic Mazdas to experience the weird and wonderful rotary's triumph

AUGSBURG, Germany — Everything weird and wonderful about Mazda's relationship with the Wankel rotary engine is embodied in the delightful 110S Cosmo Sport of 1967. Just shy of 1,200 were built and, for most of its life, it remained a Japanese curio. Driving one is a rare privilege, and yet here I am, leading a convoy of owners through Bavaria away from a private museum holding the most extensive collection of Mazdas outside of Japan. Created by local franchise holder Walter Frey, what started out as a business relationship in the 1970s has blossomed into a lifetime love affair. Whether the residents of Augsburg are quite so enamoured is another question. As I leave the museum I pass a sign proclaiming my entry into an "umwelt zone" for low-emissions vehicles. The oil-tinged plume of smoke in my wake rather makes a mockery and underlines one reason there are no rotary engines in the current Mazda product range. Created by a German but perfected by the Japanese, it seems appropriate to celebrate the association with the Wankel engine here. Mazda may have gone on to sell nearly 2 million rotary-engined cars to the world — the U.S. included — but 50 years ago it brought two Cosmos to the Nurburgring and entered them into the grueling Marathon de la Route as a proof of concept. After 84 hours of continuous running and a fourth-place overall finish, Mazda had demonstrated to the world a rotary could stay the distance. I have a slightly less grueling schedule but look forward to following the instructions to rev the hell out of the Cosmo to clear the smoke out of its system. Those following me will certainly be hoping this does the trick. A thirst for oil as well as gasoline isn't the only rotary trait. The two chambers of its motor displace 491 cc apiece, equivalent to about 2.0 liters in a regular reciprocating design. In this second-series car, it delivers around 128 horsepower, which drives the rear wheels through the transmission's five gears. There doesn't seem to be a whole lot of progress in any of them, truth be told, the characteristic lack of torque making for more noise than meaningful acceleration. It's a small car and weighs just more than 2,000 pounds, with a power-to-weight ratio not far off that of an original NA Miata. But it's one for carrying speed, not building it. The wood-rimmed Nardi wheel is one piece of luxury in an otherwise functional, vinyl-trimmed cabin, and through it the Cosmo has a nice blend of stability and agility.

Mazda rumored to bring rotary-powered RX-9 concept to Tokyo

Stop us if you've heard this one before: Mazda will bring a rotary-powered sports car to the next big auto show. Okay, so we stopped for a second, but the show must go on. Following an official teaser image (shown above) late last month, Motoring.com.au has what it claims are renderings of the curvy, two-door coupe – called the RX-9 – that Mazda will bring to the Tokyo Motor Show later this month. The images show a far softer styling than Mazda's current crop of Kodo-inspired vehicles, while the overall look screams of a modern-day Cosmo Sport, the Japanese brand's first rotary-powered vehicle. And though that connection alone might be enough to justify whisperings of a successor to the RX-7 and RX-8, Motoring claims there will be an even more overt sign of this concept's power source. "Look to the Cosmo Sport," an inside source told the Aussie website, signaling that the Mazda stand would feature the vintage two-door. "The Cosmo has no earthly reason for being there unless..." The rotary rumor, if it comes true, won't exactly be what we're use to. While Motoring brings up the previously reported 16X – a 1.6-liter two-rotor – it builds on our 2013 report. According to the Aussies, the new engine could feature a two-stage electric turbocharger, be paired with a hybrid powertrain, offer up to 450 horsepower, and we're guessing, be hilariously complicated. Joking aside, it sounds like Mazda's goals here are admirable. A rotary-equipped sports car that could counter the 1.3-liter RX-8 engine's appetite for fuel and improve on its mediocre low and mid-range torque would be interesting indeed. As for those renderings, Motoring has front and rear three-quarter images. Comparing the rear with our original teaser leaves the look open to interpretation, but after seriously upping the exposure on the teaser (thanks Photoshop), the taillights and overall profile shape look to be a spot-on match. In front, the long hood shares some Kodo elements, like the headlights and grille, but its undeniable coupe shape – a long hood and very short deck – are far more organic and, dare we say, calm, than Mazda's other vehicles. You can take a closer look at the renderings over at Motoring's website. Do that, and then head back and let us know what you think of these RX-9 rumors. Is Mazda finally going to be bringing a rotary back to market?

More head-up displays are coming to a dashboard near you

With the exception of Apple products — $1,000 for a freakin' smartphone? — one great thing about tech is you typically get more for your money with each passing year. This is particularly true with automotive tech: Features like driver assists and surround-view cameras that were once exclusively available in luxury vehicles now come standard even on some economy cars. The same thing is slowly happening with head-up displays (HUD). For example, the 10-inch HUD in the 2018 Toyota Camry is one of the largest and best HUDs I've seen in any car. And a big improvement on the much smaller HUD in the latest Toyota Prius. Mazda is another mainstream brand that offers HUDs in several of its vehicles. But instead of embedding expensive components in the dash and using a special windshield, the HUDs in the Mazda3 and Mazda6 use a thin plastic lens that folds down when not in use. MINI has a similar solution, but this low-cost approach has limits in terms of size and position of the images compared to traditional HUDs that use the windshield as a screen. We're also starting to see similar lens-based aftermarket options that can be added to any car. Last year I tested a portable HUD called Navdy that taps into a car's OBD-II port to provide info on speed and RPM and uses built-in GPS and Google Maps to show the surrounding area, display speed limits and route you to your destination. Navdy also connects to an Android or iOS smartphone via Bluetooth to display data from phone calls, texts and music playing on a connected device, and it's simple to use and easily visible in almost any lighting condition. While Navdy is still available online, late last year the company ran into financial difficulties, and product support has been halted. I recently tested a new portable HUD called Hudly that's not quite fully baked and falls short of Navdy because it doesn't tap into an OBD-II port. Since a companion smartphone app for Hudly isn't scheduled to launch until next month, for now it only mirrors what's on a smartphone. So it can be used for nav and other apps, and its features are very limited. Between automakers adding HUDs in more reasonably priced cars and the aftermarket filling in the gaps for existing vehicle owners with add-ons, the technology is becoming more prevalent and affordable. And it's also getting better.