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Nissan CEO Uchida says he's willing to be fired if turnaround fails

YOKOHAMA — Nissan's new chief executive said on Tuesday he would accept being fired if he fails to turn around Japan's second biggest automaker which is grappling with plunging sales in the aftermath of the scandal surrounding ex-chairman Carlos Ghosn. Makoto Uchida, who took over the top job in December, put his job on the line at the automaker's shareholders' meeting, where he faced demands ranging from cutting executive pay to offering a bounty to bring Ghosn back to Japan after he fled to Lebanon. Nissan's worsening performance has heaped pressure on Uchida, formerly Nissan's China chief who became its third CEO since September, to come up with aggressive steps to revive the company. On Tuesday, Uchida, who was repeatedly heckled by shareholders, said he was ready to face dismissal if he failed to improve profitability at the company, which is on course to post its worst annual operating profit in 11 years. "We will make sure that we steer the company in an effective way so that it is visible in the eyes of viewers. I will commit to this: if the circumstances remain uncertain you can fire me immediately," he said. Uchida, 53, did not give a timeframe for improving Nissan's performance. The new boss must prove to the board he can accelerate cost-cutting and rebuild profits at the 86-year-old Japanese giant, and that he has the right strategy to repair its partnership with France's Renault, sources have told Reuters. Uchida pleaded with shareholders to be patient while he comes up with a plan by May to recover from crumbling profits and a corporate shake-up following Ghosn's arrest in Japan in late 2018 over financial misconduct charges. "If you can be patient a little bit longer, on a day-to-day basis you will be able to sense we are changing," he said. Ahead of the meeting, some shareholders demanded more clarity about Uchida's plan. "I just want to know what the plan for recovery is. At the moment, the share price has dropped again, and the value of the company has plummeted," said a 70-year-old former employee who owns shares in the company. "If this is the situation, part of me thinks that we would be better off with Ghosn ... If we don't get a clearer vision of the path the company is taking, it will be a worry." Nissan's shares are trading around their lowest level in more than a decade following its latest earnings.

Porsche wins the 2015 24 Hours of Le Mans

The question going into this year's 24 Hours of Le Mans was whether or not the Porsche 919 Hybrid would be able to combine its qualifying pace with race reliability. After battling neck-and-neck with Audi's R18 for most of the race, the answer is a resounding yes. Not only did Porsche drivers climb the first two spots on the podium, they did so without any major mishaps on track. This win is the first overall trophy for Porsche since 1998. Audi previously won the last five races, and 13 of the last 15. Corvette also returned to the winner's circle, with the No. 64 C7.R taking winning the GTE Pro division. The victory is the first class win for Corvette since 2011. KCMG won the LMP2 class in ninth overall. With 45 minutes to go the No. 98 Aston Martin crashed out of first place in GTE Amateur, giving the class win to SMP Racing's Ferrari and second place to the Patrick Dempsey Racing Porsche 911 RSR. For the full list of official results, click here. The GTE Pro class proved to be just as exciting as the P1 class, with a four-way battle for first after four hours into the race. For most of the race, the battle at the top went back and forth between the two German manufacturers. An tire puncture in the No. 7 Audi gave up the lead to Porsche, and moments later a crash forced the No. 8 into the garage. But a three-minute replacement of the front and rear bodywork kept the Audi in contention. As the race wore into the night, Porsche maintained a slightly faster pace than Audi. Nick Tandy took the lead on Lap 253 early Sunday morning, and car No. 19 never gave up the top position. The win is the first for all three drivers of the No. 19 – Nico Hulkenberg, Earl Bamber, and Nick Tandy. A lap behind in second was the No. 17 Porsche. The Audis fought reliability problems late in the race but still finished third with the No. 7 R18. The GTE Pro class proved to be just as exciting as the P1 class, with a four-way battle for first after four hours into the race. As the Aston Martin cars dropped away, the lone Corvette Racing entry took over, followed by a charging AF Corse team Ferrari 458 Italia. The Corvette and Ferrari continued to trade places in the final hours until gearbox trouble forced the No. 51 Ferrari out of contention. It was eventually passed by the other AF Corse car, No. 71. Nissan experienced all the pain of a first-year effort with its front-wheel-drive GT-R LM Nismo.

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.