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A journey to our driving future | Autoblog in Japan

TOKYO — We here at Autoblog recently went to Japan to drive cars, ride trains and talk to people about the past and future of mobility. In 1964, Japan hosted the Summer Olympics. To showcase to the world how far they had come since WWII, Japan launched its latest marvel in mobility, the Shinkansen (or as we call it, the Bullet Train). In 2020, Japan is hosting the Summer Olympics in Tokyo, and this time the nation is prepared to showcase a huge push toward autonomous cars. Green Editor John Beltz Snyder, Senior Producer Christopher McGraw and Associate Producer Alexander Malburg traveled there to get a sense of the country's transportation ecosystem with the 2020 Games on the horizon, and we filmed the experience along the way. In this series of videos, you'll see us try out car features that aren't yet available in the U.S., talk to an expert at Nissan about electric and autonomous mobility, ride the incredibly fast Shinkansen bullet train between Tokyo and Kyoto, pay homage to Soichiro Honda — and Ayrton Senna — at the Honda Collection Hall at Twin Ring Motegi, and see some beautiful and historic sites along the way. Here's what we'll be showcasing from our trip to Japan. Check back here as we update the list with links to all the videos: Driving a Subaru WRX equipped with EyeSight with Touring Assist Reviewing the 2018 Nissan Leaf on the roads of Japan Testing ProPilot Park on the Nissan Leaf Talking with Nicholas Thomas, Nissan's director of electric vehicles How to ride the Shinkansen in Japan (We love trains!) Touring the Honda Collection Hall at Twin Ring Motegi Check out the travelogue video at the top of this page for a taste of what's to come, then join us for a journey to Japan, Autoblog style. Related Video: Auto News Green Honda Nissan Subaru Green Driving Technology Autonomous Vehicles Electric Videos Original Video

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.

Ghosn took bullet train to Osaka en route to Lebanon

Japan Justice Minister Masako Mori speaks during a press conference about Carlos Ghosn's escape from Japan. / Getty TOKYO — Former Nissan and Renault boss Carlos Ghosn began his astonishing escape from Japan with a bullet train ride from Tokyo to Osaka, possibly accompanied by several people, Japanese news agency Kyodo reported Monday. Japanese authorities also said on Monday they may still press for Ghosn's extradition from Lebanon to face multiple charges of financial wrongdoing, even though the country does not normally extradite its nationals. Security cameras captured Ghosn leaving his home on Dec. 29 at about 2:30 p.m. (0530 GMT) and arriving some hours later at Tokyo's Shinagawa Station, where he took the train 300 miles to Shin Osaka Station, Kyodo said, citing a person familiar with the matter. The international fugitive then went by car to a hotel near Osaka's Kansai International Airport, where he boarded a private jet at 11:10 p.m., according to the media report. Ghosn was forbidden from leaving Japan while awaiting trial on charges of financial misconduct, which he has denied, but he fled at the end of 2019 to escape what he called a "rigged" justice system. Prosecutors are now working with police to piece together Ghosn's route and find out who helped him, Kyodo said. In the government's first briefing since Ghosn skipped bail, Justice Minister Masako Mori said on Monday that as a general principle, Tokyo could request the extradition of a suspect from a country with which it has no formal extradition agreement. Such a request would need to be carefully examined based on the possibility of "guaranteeing reciprocity and the domestic law of the partner country," Mori told reporters in Tokyo.   Arrest warrant Mori did not say what would guarantee reciprocity (the idea that benefits or penalties extended by one country to citizens of another should be reciprocated). She also did not say if there were any Lebanese nationals in Japan wanted in Lebanon. Mori offered little insight into the events of Ghosn's escape to his ancestral home, repeatedly saying she could not comment on specifics because of an ongoing investigation. Japanese officials broke days of silence about the Ghosn case on Sunday, saying they would tighten immigration measures and investigate his escape thoroughly. The authorities have also issued an international notice for his arrest.