1985 Mazda Rx-7 Only 67k Original Miles! on 2040-cars

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Mazda working on lithium-ion batteries to replace lead-acid starter batteries

In the quest for ever better fuel economy, car companies are looking for every single advantage possible, no matter how small. This is evident in everything from active grille shutters to the 48-volt mild-hybrid electric assist systems like that in the new Ram 1500. For Mazda, the latest target for potential efficiency gains is the lowly 12-volt starter battery. The company announced that it is partnering with two other companies, ELIIY Power and Ube Industries, to develop a lithium-ion starter battery that would be used on mainstream models in place of conventional lead-acid units. Mazda plans to have them ready for use by 2021. The advantage here would be that 12-volt lithium-ion batteries would be much smaller and lighter than the lead-acid ones they replace. And lighter cars don't need as much fuel to move around. Plus, as an added benefit, making cars lighter also often makes them faster and better handling. This is why companies such as Lotus and Porsche have offered optional lithium-ion 12-volt batteries for some lightweight sports cars. A potential downside to the use of these batteries is increased cost. Lead-acid batteries from your local parts store will run you between $100 to $150. AGM batteries could be between $200 and $300. As for lithium-ion batteries, Lotus introduced the option on the Evora 400 in 2016, and the option cost $1,690. Odds are that a company such as Mazda won't be absorbing all those costs, meaning that the cost of these future Mazdas could increase with a change from lead-acid to lithium ion. Related Video:

Mazda RX-9 could be a 400-hp, 2,900-pound coupe due in 2019

Mazda poured fuel on the white-hot rumors of an RX-8 successor with the RX-Vision earlier this year. The long, low rotary-powered coupe was lovely, but as we reported, it wasn't going to happen. But now, there's another chapter in the RX rumormill, and like overnight parts, it's from Japan. Japanese site Holiday Auto claims that Mazda will debut the so-called RX-9 at the 2019 Tokyo Motor Show. But before that happens, the Zoom-Zoom company will preview the production model with a concept at next year's Tokyo Motor Show. 2017 is important, marking 50 years since Felix Wankel had the screwy idea for his eponymous engine and 40 years after the company's first rotary powered car, the Cosmo, hit the market. Exciting as Holiday Auto's report is, the stats on this long-rumored car are better – via Google Translate, the Japanese site claims the RX-9 will use a 1.6-liter, two-rotor Wankel with a single turbocharger. It's good for around 400 horsepower. Holiday Auto isn't exaggerating when it claims the car could have "bike-like acceleration." As with other Mazda products, a low curb weight is key, which is why engineers are targeting a meager 1,300 kilograms (2,866 pounds) for the production model – that weight should be pretty evenly split, too, thanks to a rear transaxle. So yes, the RX-9 will be stupid fast and extremely agile. But it will come at a cost. And by cost, we mean that the RX-9 will start just south of eight million yen. That's $79,641 at today's rates, or enough to purchase about 2.5 RX-8 R3s, the hardcore handling trim of Mazda's last-gen rotary car. And if Mazda follows Nissan's GT-R pricing model, we'll see a six-figure RX-9 by 2025. When it comes to Mazda rotary rumors, grains of salt are a must. That's doubly true when we're talking about a possible concept that won't debut for over a year. But with the RX-Vision, Mazda showed that it hasn't abandoned rotary power, and with 2017 marking a big anniversary for the technology, it seems unlikely that the company will let the date pass without some acknowledgement. A concept car seems like a solid bet. Related Video:

RC car drift video brings Fast and Furious style in 1:10 scale

Taking a cue from Lexus' 2015 Super Bowl ad Let's Play, Falken Tire is proving that RC cars can drift just as well, if not better, than their full-size counterparts. However, to make things four times as exciting, this clip eschews a single hopped-up model hanging its tail out in favor of a quartet of them sliding around together. Starring 1:10 RC versions of popular drift machines like the Nissan S15 Silvia, Mazda FD-chassis RX-7 and Initial D star Toyota Corolla AE86, these cars also get a suite of blinking LEDs to lend some extra color to all of the tire spinning. Plus, the use of well-positioned cameras and a scale model environment almost makes this group look like they're at work in the real world. News Source: Falken Tire via YouTube Motorsports Toys/Games Mazda Nissan Toyota Racing Vehicles Videos drifting drift rc car mazda rx-7 nissan silvia toyota ae86