2014 Nissan Altima 2.5 Sl on 2040-cars

Auto blog

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

Autotrader picks best cars for 2015's college grads

Summer is here and the school season is winding to a close. That means millions of students will be graduating college and (hopefully) entering the workforce. For many, that will mean buying a new car suited to the new stage in life into which they will now be embarking. That can be a bewildering choice, especially for someone who's never bought a car before. Fortunately, Autotrader has come up with a short list of recommended cars – new and used – which it recommends to the graduating class of 2015. Among the site's top choices are some compelling crossovers and hatchbacks, including the Buick Encore, Chevy Trax, and Jeep Renegade, as well as the Honda Fit, Nissan Versa Note, Mazda3 and Fiat 500. Can't stretch to buying new, or don't see the point? Autotrader has also identified the Toyota Camry, Ford Fusion and even the Lexus IS as smart buys in the certified pre-owned category. "Any time someone goes through a major life change, such as graduating college, they need to determine if their current ride makes sense for their lifestyle, from both a financial and functional perspective," says Autotrader editor Brian Moody. "For example, while that hand-me-down SUV from your parents was nice when you turned 16, you may want to opt for a safer, more fuel-efficient car as you transition into the working world." Autotrader Names 10 Best Cars for Recent College Graduates ATLANTA, May 28, 2015 /PRNewswire/ -- For many, graduating college is a milestone like no other – it represents a new chapter, a proud accomplishment and, fortunately or unfortunately, financial independence. Luckily for graduates who are in the market for a new car to suit their post-college lifestyle, Autotrader's expert editors say now is a great time to make a purchase, as dealerships are flush with affordable models that are fun, fuel-efficient and thoughtfully designed. Autotrader Logo "Any time someone goes through a major life change, such as graduating college, they need to determine if their current ride makes sense for their lifestyle, from both a financial and functional perspective," said Brian Moody, site editor for Autotrader.

Nissan battery breakthrough to double Leaf EV range within a few years

The Tesla Model S might be the headline-grabber of the electric vehicle world, but the Nissan Leaf is the segment's secret star. With over 130,000 sold worldwide since its introduction and record US sales in 2014, the little hatchback has helped its parents at the Renault-Nissan Alliance to sell over 200,000 EVs since 2010. With that much success in the EV business, there's no reason for the automaker to stop now, and according to CEO Carlos Ghosn a huge technological breakthrough is on the way to make plug-ins an attractive choice for more drivers than ever before. In an interview on Japanese TV, Ghosn confirmed that Nissan has a new battery that could allow for over 400 kilometers (249 miles) of range. New batteries could "very soon take the issue of range off of the table." – Jeff Kuhlman Ghosn was tight-lipped on the details of the tech, but Daily Kanban dug deeper. An unnamed Nissan engineer confirmed that the roughly 250-mile range would be for a Leaf-sized vehicle – a massive leap over the hatchback's current EPA-rated max of 84 miles or 124 miles in Europe. The battery reportedly offers twice the capacity, while bringing weight and costs down compared to the present version. "Commercial applications could be no more than one model cycle away," said the anonymous worker, making the innovation sound even more tantalizing. Lending even more credence to this major battery innovation, Nissan spokesperson Jeff Kuhlman told Daily Kanban: "We continue our R&D efforts because we believe that we can do more with battery electric, and very soon take the issue of range off of the table." Renault-Nissan is betting a huge portion of its chips on the future of battery electric vehicles. The company even tried stuffing a 48-kilowatt hour pack into a Leaf for an event in Spain last year. While not its primary focus, the automaker is hedging its bets slightly by working with Daimler and Ford on fuel cell innovations, as well.