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Waymo partners with Nissan, Renault on robotaxis outside U.S.

SAN FRANCISCO — Self-driving car pioneer Waymo is teaming up with automakers Renault and Nissan to make its first journey outside the U.S. with a ride-hailing service that will dispatch a fleet of robotaxis in France and Japan. The partnership announced late Wednesday underscores Waymo's ambition to deploy its driverless technology throughout the world in an attempt to revolutionize the way people get around. The Mountain View, California, company can afford to try because it's backed by one of the world's richest companies, Google, which secretly began working on driverless technology a decade ago before spinning off that project into what is now known as Waymo. After launching its ride-hailing service in France and Japan, Waymo intends to explore other European and Asian markets with Renault and Nissan. "This is an ideal opportunity for Waymo to bring our autonomous technology to a global stage," Waymo CEO John Krafcik said. Waymo, Renault and Nissan didn't set a timetable for when their ride-hailing service will launch. They left most other details vague. It seems likely it will still be several years before Waymo will be in a position to pose a serious challenge to Uber, the world's largest ride-hailing service. Although Waymo's self-driving technology is widely considered to be the world's most advanced, it still isn't adept enough to be trusted without a human poised to take control in case something goes awry with the robot. Waymo had hoped to launch a fully autonomous ride-hailing service last year in the Phoenix area, but instead is still keeping human safety drivers in those vehicles more than six months after it rolled out. That service, known as Waymo One, is still only offering rides to a few hundred passengers that previously participated in a test program. Krafcik told the German newspaper Handelsblatt last year that Waymo will likely use a different brand for its ride-hailing services outside the U.S. That could be one reason Waymo is working with France-based Renault and Japan-based Nissan, household names in their home countries. Waymo has previously struck deals with two automakers, Fiat Chrysler and Jaguar, but those involved ordering tens of thousands of vehicles to be equipped with self-driving technology for services in the U.S. So far, Waymo is only using Fiat Chrysler minivans for its Phoenix service. The partnership with Renault and Nissan also involves a long-time alliance they formed with Mitsubishi.

2016 Nissan Altima gets SR model, 39 mpg, 3 press releases [w/video]

UPDATE: After taking exception with Seyth's reaction to press-release overdose, a Nissan spokesperson commented,"It gets 39 mpg. That's ******* epic." The Mazda 6, rated 40 mpg highway, is the only car among the Altima's peers to do equal or better. (See a full list of gas-powered non-hybrid cars that do 39 mpg highway or better here.) It seems that Nissan just can't stop selling its hot Altima midsizer. At least, that's what the bullet points of the press release for the new, 2016 version of the car tell me. The model has seen five consecutive years of sales growth, occasionally hitting the 30,000-per-month figures that heavies like Camry, Accord, and Fusion regularly nab. And, as we all know, a key to keeping midsize sedans fresh is the mid-cycle refresh. Here we have it. Nissan has reshaped the front and rear of the Altima to better match the look of its handsome new Maxima. That means a deep-v wrought in chrome on the front fascia, new (optional) LED headlights that look like reverse check marks, and a lower bumper that mirrors the shape above it. There are new taillights, bumper, and trunk lid for the rear of the car, too. You'll likely have to stare at the pictures pictures of the posteriors on the old and new cars for a few minutes (as we did) to pick them out, but they're there. The press release says so. Changes to the interior are subtle. We spotted a new center stack, and new cup holders next to the gearlever. Your weird friend Brian who hosts the Altima Altimatics fan forum could probably lend more detail here, but the non-enthusiast eye sees a mild rethinking of a nice interior. The excellent Zero Gravity front seats are still standard on all trims, which is probably half the reason Nissan is selling so many of these things. (How did that not make the bullet points, guys?) Change is more evident in the new-for-'16 Altima SR trim. The lighting profile is different for the model's most athletic variant, with smoked lenses, daytime running lights and revised fog lamps. More importantly, the SR gets its own suspension setup, revised dampers, stiffer front and rear stabilizers, and a more aggressive wheel/tire package. Nissan also offers drivers the ability to paddle-shift the SR's CVT transmission. The SR grade can be had with either Altima engine option. As for the motivating forces behind Altima's new nose, well, they're mostly the same.

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