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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

Subaru offers glimpse of Viziv 2 Geneva concept

Subaru clearly sees something special in its Viziv crossover concept. After debuting it at last year's Geneva Motor Show and evolving it for the Tokyo Motor Show, the Japanese brand is bringing a Viziv 2 concept to this year's Geneva show on March 4. It also has a few other cards up its Swiss sleeve, too, as it has plans to display its new WRX STI road car and racecar for the Nürburgring 24 Hours this summer.
The third iteration of the Viziv gets reshaped boomerang headlights and new LED foglights, but that's all we know for the moment, because Subaru has only released a single teaser rendering along with a tantalizing claim that the showcar "signifies a future path" for the brand's next models.
The powertrain for the Viziv 2 is also still a secret. Both previous concepts used three-motor hybrid systems matched to continuously variable transmissions. In the first concept, primary power came from a diesel engine, while gasoline power was said to motivate the second evolution in Tokyo.

Watch Higgins' mind-blowing Subaru WRX STI Isle of Man record lap in first-person

Have you gotten sick of Subaru and the Isle of Man? Good, we'd hope not, because of all the videos we've posted so far, today's is the crown jewel. In-car, around the notoriously treacherous race track, with commentary from David Higgins himself.
It gets better, though. Overlaid with the video is the same biometric data that we showed you last week. The result is a heart-pumping, 22-minute video of the record-breaking sprint around the entirety of the Isle of Man TT circuit at a truly wild pace. Higgins commentary, meanwhile, simply adds to the experience of hurtling across the landscape. Subaru has also put together a second video, highlighting the WRX STI that was used in the lap.
You can view both of those videos, as well as a short press release from Subaru, below. Scroll down and take a look.