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New details emerge on Inifiniti QX50’s unique new variable-compression engine

Infiniti will release the world's first production variable-compression engine when it releases the 2019 QX50 midsize SUV sometime next year. Now we have some new details on the innovative new engine, which Infiniti is calling VC-T, for Variable Compression Turbo, after the luxury brand offered a prototype test drive. We wrote extensively about the complicated technology underpinning the new engine last year. It's the latest novel development that could represent a range-extender, if you will, for the embattled internal combustion engine in an era when automakers and governments are shifting their focus to electric vehicles. The VC-T is a new inline-four, 2.0-liter that combines the power of a high-performance turbo gasoline engine with the torque and efficiency of an advanced diesel engine, but without the latter's notorious emissions. It features the ability to seamlessly raise or lower the stroke of the pistons in the combustion chamber, depending on the driving conditions it detects and inputs from the driver, to select the best compression ratio—anywhere between 8:1, typical for high-performance engines, and 14:1 for high efficiency. In essence, it delivers the performance of a V6 but is much more efficient, with improved fuel efficiency of between 10 to 15 percent with its best competitors, per Car and Driver. You can view how it works in motion via the video below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. It's also quieter, more lightweight and compact than V6 engines with comparable power outputs, estimated at 268 horsepower and 288 pound-feet of torque. In a prototype test drive, Car and Driver writes that the engine "felt very conventional" and responsive, with strong and smooth acceleration. "The only indication you have that the compression ratio is changing is from an indicator in the instrument cluster next to the boost gauge." The engine is expected to deliver fuel economy gains of 27 percent in combined city-highway EPA rating over the outgoing QX50, which had a 3.7-liter V6. The 2019 model, fitted with the VC-T, should get about 26 mpg in combined fuel economy, and it will get to 60 mph almost one second faster than its four-cylinder counterparts, Nissan's chief powertrain engineer, Shinichi Kiga, told Automotive News. The VC-T engine is the result of 20 years of development spanning more than 100 prototypes and around 300 patents at Nissan.

Formula 1 seeking independent engine supplier

Formula 1 could get a new engine supplier in the near future, if Bernie Ecclestone and the independent teams gets their way. According to Autosport, the FIA is soon to open the contract up for bids, and there are already several manufacturers that have expressed interest. Currently Mercedes, Ferrari, Renault, and Honda supply engines – both to their own premier teams (Red Bull and McLaren for the latter two) but also to other teams like Williams, Sauber, and Toro Rosso. Because the new turbocharged V6 hybrid power units cost those four suppliers so much to develop, they're charging their customer teams big bucks – around $20-30 million per season – to provide the engines. These costs are much higher than the $10 million or so it used to cost to purchase a V8 engine under the previous regulations. Ecclestone figures it's time to bring in another supplier who will not run their own team and not play favorites, but will supply engines to private teams at a lower cost. There are already a number of potential suppliers under consideration. One of them is said to be Cosworth, which has a long history in the series stretching back to 1963. The British firm stepped back between 2007 and 2009, returned in 2010, and dropped out again after 2013. The development could be of particular benefit to Red Bull, which has been unable to find an engine supplier and could be forced out of the series as a result. The team has long been powered by Renault, but that relationship has grown sour. And the other three engine manufacturers have not been forthcoming in offering an alternative arrangement for the team. Related Video: News Source: AutosportImage Credit: Cosworth Motorsports Ferrari Honda Infiniti McLaren Mercedes-Benz Renault F1 engine contract

Infiniti Q30 will debut at Frankfurt Motor Show

The Infiniti Q30 made its debut as a svelte concept at the 2013 Frankfurt Motor Show. Now, two years later, the luxury hatchback will make a big return to the German show in September to launch in production guise. Before the end of the year, the first Q30s will start showing up for sale in European showrooms to take on rivals like the Audi A3. To tease the launch, Infiniti has released this single image of the Q30 going through final validation testing on the road. Unfortunately, it's still wearing a very effective camouflage pattern – just like some previously spied examples. Still, we can tell that there are definite similarities to the hatchback's stylish QX30 compact crossover sibling, which is also on the way. Both of them have sharply pointed, narrow headlights and steeply raked hatches. We can also just make out the deeply creased swage line that cuts through the front door handles and then dips down in this photo. Infiniti promises more details to come about the Q30 before the Frankfurt launch. At least for European examples, assembly is reportedly earmarked for the Sunderland factory in the UK. Related Video: Infiniti Q30 to debut at Frankfurt IAA 2015 All-new Q30 compact entry to debut 90 days from today to the public Infiniti's first-ever compact car currently going through validation and dynamic tuning in Europe Sales to begin in Europe before end of 2015 HONG KONG – Infiniti will unveil its first-ever compact car at the International Motor Show in Frankfurt in September this year (September 17 to 27). Two years after the Infiniti Q30 Concept debuted at the 2013 Frankfurt show, the production version of this segment-spanning compact car will be revealed at the show this year. Infiniti is in the final stages of preparing the launch. Dynamic testing and ultimate validation is currently taking place across the UK and throughout mainland Europe where development of the vehicle has been completed at the company's Engineering Center in Cranfield, UK, since 2014. The Q30 will go on sale in Europe towards the end of 2015 with other markets to follow subsequently. More news on the Infiniti Q30 active compact will be released closer to the Frankfurt show in September. About Infiniti Infiniti Motor Company Ltd. is headquartered in Hong Kong with sales operations in over 50 countries. The Infiniti brand was launched in 1989. Its range of premium automobiles is currently built in manufacturing facilities in Japan, the United States and China.