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Bathurst 12-hour gallery is GT3 heaven [w/video]

The 2015 Liqui-Moly Bathurst 12-Hour race was run this weekend at the Mt. Panorama Circuit in Bathurst, Australia. Race photographer Joel Strickland sent us a huge batch of photos, all of which make us salivate for the switch to GT3 rules in the United SportsCar Championship; the top seven finishers at Bathurst were of seven different makes: Nissan GT-R NISMO GT3, Audi R8-LMS Ultra, Aston Martin Vantage GT3, Bentley Continental GT3, Mercedes SLS AMG GT3, Ferrari F458 Italia and Lamborghini Gallardo. It was a sweet victory for the No. 35 car driven by the NISMO Athlete Global Team after it crashed in Saturday qualifying, and then was only in third place on the penultimate lap. The three-man driving team included two GT Academy winners, one of whom, Florian Strauss, has only been a professional race car driver for 18 months. It's the first time the GT-R has won at Panorama since the original R32 "Godzilla" took back-to-back wins in 1991 and 1992. Second place went to the No. 15 Phoenix Racing Audi R8-LMS Ultra, 2.4 seconds behind the winners, third to the Craft Bamboo Racing Aston Martin Vantage not even half a second behind the Audi. The Bentley Motorsport team, in its first Bathurst 12-Hour with two cars, had its No. 10 Continental GT3 in the lead until the penultimate lap and in second place until the final corner, but crossed the line in fourth after some rubbin'-is-racin' action from chasers. And if pictures aren't enough, as of writing you can still watch the live stream of the entire race at the Bathurst 12-Hour site. Or, if you don't have the time, at least be sure to check out the last five minutes, below. Enjoy. Featured Gallery 2015 Liqui-Moly Bathurst 12-Hour View 118 Photos Image Credit: Copyright 2015 Joel Strickland / AOL Motorsports Aston Martin Audi Bentley Nissan Coupe Racing Vehicles Videos aston martin vantage gt3

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.

Andy Palmer leaves Renault-Nissan to serve as CEO of Aston Martin

Aston Martin has been without a helmsman since Ulrich Bez stepped down from the chief executive office at the end of last year, stepping back to serve as non-executive chairman in a semi-retired ambassadorial capacity. The British automaker, now on the cusp of a new era, has been running without a CEO since, but has now named Bez's replacement in Andy Palmer.
If you don't recognize the name, you should: Palmer has worked under the Renault-Nissan Alliance for decades now, rising through the ranks to become one of the top executives under Carlos Ghosn. Most recently he was serving as executive vice president of the entire group and chairman of the Infiniti brand, but like Carlos Tavares, who recently left Renault to run Peugeot, Palmer is now embarking on a new mission as CEO of Aston Martin.
Once the transition period is complete at the start of October, Palmer's role as Chief Planning Officer at Renault-Nissan will be assumed by Philippe Klein, who steps up from his current role as executive vice president of product planning for Renault. Read the statements from both companies below.