2009 Nissan 370z Nismo Coupe 2-door 3.7l on 2040-cars

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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

2015 Nissan Micra is your cheapest new car, Canada

Canadians looking for a brand-new car on the cheap, take note. This is the 2015 Nissan Micra, and it will arrive at dealerships this spring boasting a starting price of $9,998 Canadian dollars (circa $9,100 US), well under the $11,898 asked for a 2014 Versa Sedan.
Of course, that ultra-low asking price isn't for a fully loaded model. The Micra will arrive in the Great White North in three trims - S, SV and SR - with the buyer's choice of a five-speed manual or a four-speed automatic. A 109-horsepower, 1.6-liter four-cylinder is the sole engine choice. There will also be a number of accessory options that should allow some personalization for the small cars, with Nissan claiming that things like door handle finishers and mirror caps will be available in five different colors (plus chrome) for under $200.
"At Nissan, we understand the need in Canada for small, urban-friendly cars that are fun to drive and express their driver's personality. With Micra, we're delivering a proven global vehicle at a very attractive price - it's going to make a huge impact on the market," said Christian Meunier, the President of Nissan Canada.

Mitsubishi admits to tampering with fuel economy data

Mitsubishi admitted this week to intentionally rigging fuel-economy testing in four of its models sold in Asia. The affected models are all so-called Kei class cars with sub-660cc engines manufactured at Mitsubishi's Mizushima plant in Okayama, Japan. About 157,000 of those cars are Mitsubishi eK wagons and eK Space models, and 468,000 are re-badged Nissan Dayz and Dayz Roox cars, which Mitsubishi produces for Nissan. The matter came to light after Nissan found inconsistencies in reported mileage data, which then led to Mitsubishi launching an internal investigation. The fraud was discovered to be related to falsified tire pressure data, which has an effect on mileage results – an important matter considering these kinds of vehicles are marketed by fuel economy. Mitsubishi said it has stopped manufacturing and marketing the affected vehicles. The news caused Mitsubishi's stock to plummet over 15 percent, slicing $1.2 billion off the company's value. When the eK models hit the market three years ago, they were decorated with a Good Design Award by the Japanese Ministry of Economy – a merit that is now surely tarnished. While Mitsubishi has been suffering in the US recently, with news of the Normal, Illinois plant closing, its small Mirage model has sold well. Related Video: Image Credit: Getty Images Green Plants/Manufacturing Mitsubishi Nissan Fuel Efficiency Hatchback Minivan/Van kei cars minicars