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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

2018 Crosstrek propels Subaru to best-ever April sales

April was a dismal month for most automakers, with sales declines that ranged from 4.7 percent for Ford to a whopping 28 percent for Nissan. So here comes mighty little Subaru, which claimed the month as the best April in its history. The gain is entirely attributable to the Crosstrek, which is all-new for 2018. Sales of the compact, raised crossover climbed almost 70 percent for the month to 12,266. Year to date, Subaru has sold 45,728 Crosstreks, an increase of 66.6 percent. That helped push Subaru's total U.S. sales to 53,170 in April and 202,873 for the first four months of 2018, increases of 1.5 percent and 3.2 percent, respectively. It also marks 77 consecutive months of yearly month-over-month growth for Subaru. All other models saw declining sales for April, led by the Impreza, which was down 27.4 percent. "Our customers' interest in the Crosstrek continues to increase every month," Jeff Walters, senior vice president of sales, said in a statement. "We're now looking forward to the start of production later this month of the all-new Subaru Ascent at our plant in Indiana." The 2018 version of the Crosstrek went on sale last August featuring a new 2.0-liter flat-four engine, stiff new chassis, more ground clearance and the EyeSight suite of safety technologies, among other changes. But the Crosstrek has been on a hot streak for a few years now, with sales up 15.1 percent in 2017 and 6.7 percent in 2016. The Crosstrek is Subaru's third top-selling model behind the Forester and Outback. Subaru spokesman Dominick Infante says the company did not see the sales trail-off last year that's typical of a vehicle at the end of its lifecycle with the Crosstrek. "It was essentially a straight line going up, and it was limited by production," he said. The difference, he said, is that Subaru is now able to make more of them. The company last year shifted production of the Impreza to its plant in Lafayette, Ind., to free up capacity to build more Crosstreks at its plant in Gunma Prefecture, Japan, which underwent a major retooling. The Indiana plant now builds the Impreza, Legacy and Outback after the expiration of a contract in 2016 with Toyota to build 100,000 Camry sedans annually. Production of the new three-row Ascent crossover will start in Indiana in May, following a $140 million expansion at the plant, according to Automotive News. The vehicle is due in showrooms in June, Infante said, with sales of 60,000 expected in the first year.

Subaru previews rally-ready WRX STI for Global RallyCross

Subaru's long and distinguished history in the world of rallying is about to get another chapter, as it's set to field a team in the Global RallyCross Championship. The car? The all-new WRX STI.
Yes, Subaru will be fielding a GRC challenger, with drivers Bucky Lasek and Sverre Isachsen at the helm. This particular car was teased earlier this week, and is a preview of the eventual GRC model which will launch this fall. The race-ready STI boasts a custom widebody kit with a carbon-fiber rear wing. The roof scoop and the mirrors are also made of carbon fiber, while the wheels are provided by Method. As with all GRC contenders this year, the WRX STI is shod in Yokohama spec rubber. It's not clear what sort of engine sits under the scooped hood, although we imagine we'll find out before the season kicks off in a few months.
Perhaps even more exciting is word that Subaru will also prepare a version of the WRX STI for stage rallies, with Travis Pastrana and David Higgins fielding the new car in the Rally America Championship. That car should arrive later this year.