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Basic Continuously Variable Transmission explained with Legos

In recent years, the search for better fuel efficiency and smoother shifting has produced automatic transmissions with double-digit gears. Alternatively, the same quest has boosted the popularity and usage of a different type of automatic transmission without any fixed gears, the continuously variable transmission, or CVT. YouTuber Sariel's Lego Workshop recently took the time to build a CVT demonstration model out of Legos to help explain how they work. Sariel begins by showing the model's input and output shafts that are parallel to each other. Each shaft has a cone attached to it, and they are inversely placed so that the large part of one cone is next to the small part of the other cone. The two cones are connected using a rounded rubber band.  By shifting the rubber band up and down the cones, the machine changes the effective ratio between the cones. So, a 1:4 ratio can be smoothly transitioned to 4:1. No clutch is required to operate the mechanism, and it eliminates hitches or pauses between gear changes. CVTs are also advantageous over 9- or 10-speed automatics in that they are far less complex and weigh less.  To demonstrate how the CVT operates in a vehicle, Sariel used a joke about Top Gear. The original Top Gear is represented by a faster-moving car that has the rubber band around the large part of the cone on the input shaft. Top Gear without former hosts Richard Hammond, Jeremy Clarkson, and James May is represented by a slow-moving car with the rubber band around the large part of the cone on the output shaft.  For an even more detailed explanation of how CVTs work — albeit one that doesn't involve toys — you can click here. Technology Toys/Games Nissan Subaru

Renault wants to merge with Nissan, then go after Fiat Chrysler

The late Sergio Marchionne used to say consolidation would be the only way to compete against the biggest global carmakers. The company looks certain to fulfill that goal, but perhaps not in the way he intended. The Financial Times reports that Renault wants to begin merger talks with Nissan in the next 12 months. Assuming a merger gets completed, the plan is for the combined company to then pursue another merger, with Fiat Chrysler a prime target. Renault, Nissan, and Mitsubishi have been busy since cutting ties with ex-alliance boss Carlos Ghosn. They formed a new alliance board with Renault chairman Jean-Dominique Senard at the helm, Renault has shrunk the size of its board while Nissan added more outside directors, and the two agreed to a new governance structure to ease operational decision making. All three automakers have walked away from Ghosn-era goals to sell 14 million cars and find 10 billion euros in savings by 2022. New strategic plans for all three car companies are in the works. With stability in sight, it's said Senard wants to succeed where Ghosn failed — a full-fledged merger between Renault and Nissan with talks to begin "as soon as possible." Ghosn's pursuit of a merger last year in attempt to make the 20-year-old alliance "irreversible" is part of what led to his downfall, with Nissan executives including CEO Hiroto Saikawa against the push. The new effort is presented as larger scale being the only way for the alliance to take on companies like Volkswagen and Toyota. But the Nissan-Renault-Mitsubishi trio sold 10.76 million cars around the world last year, second to Volkswagen with 10.83 million sales, ahead of Toyota with 10.39 million. If Nissan hadn't suffered a 2.8 percent dip in sales, the alliance would have taken the top spot. If a little scale is good that means more is better, right? Pulling Fiat Chrysler into the alliance would add around 5 million annual sales, and would be another move in Ghosn's footsteps. The former honcho is said to have "held talks with FCA" about some kind of union within the past three years. The French government, which has a 15 percent stake in Renault and double voting rights, shut down the initiative. It's not clear if FCA will be an independent company by the time a potential Nissan-Renault merger closed, though.

2020 Ford Escape hybrids vs other crossover fuel sippers: How they compare on paper

Along with a new generation of Escape, Ford also reintroduced the world to the 2020 Ford Escape Hybrid. And if that weren't enough, Ford is adding a plug-in hybrid version. This is a sign of the times: people are more crossover crazy than ever, but are also seeking ways to use less fuel, whether it's for environmental or purely money-motivated reasons. The Ford hybrids aren't the only fuel-efficient compact crossovers on the market. They will be going head-to-head with conventional hybrids including the 2019 Kia Niro, 2019 Nissan Rogue Hybrid and 2019 Toyota RAV4 Hybrid. There are other plug-in hybrids including the 2019 Subaru Crosstrek PHEV, 2019 Mitsubishi Outlander PHEV and the plug-in version of the 2019 Kia Niro. There are even a couple diesels in the form of the 2019 Chevy Equinox and 2019 GMC Terrain. So we've rounded up the details on all these crossovers to see who leads and lags in criteria such as power, fuel efficiency, space and price. Check out all their details below. 2019 Subaru Crosstrek Hybrid View 68 Photos How do their engines and fuel economy compare? Conventional Hybrids and Diesels Let's face it, if you're buying one of these crossovers, one of the things that matters most to you is just how frugal with fuel they are. We'll start off with the conventional hybrids and diesels, and the clear victor is the Kia Niro, which in base FE trim, manages to hit 50 mpg combined. This is thanks to it sharing its powertrain with the Hyundai Ioniq, the Hyundai equivalent of the Toyota Prius. Buyers should take note that only the FE returns such high fuel economy. The LX and EX drop to 49 mpg, and the S Touring and Touring get 43. Even then, the least efficient Niro is the most efficient of the normal hybrids and diesels. It is nearly the least powerful, though, with 139 horsepower. Just behind it is the Toyota RAV4 Hybrid. It delivers 40 mpg combined, and it has an ace up its sleeve: it comes standard with all-wheel drive. Every other vehicle in this powertrain group has front drive standard, and the Niro isn't available with all-wheel drive at all. If that weren't enough, the RAV4 Hybrid also boasts the most power at 219 horses. While we can't say anything about Escape Hybrid fuel economy, we do know that it will make 198 horsepower, which is close to the class-leading RAV4. The least powerful of these is the Equinox and Terrain, and they return the worst fuel economy at 32 mpg.