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INFINITI unveils new QX50 with variable compression ratio engine; 35% improvement in fuel economy over prior FWD V6

Green Car Congress

At the Los Angeles Auto Show, INFINITI revealed the all-new QX50—a premium mid-size SUV featuring the first production application of the VC-Turbo variable compression ratio engine, transforming on demand. —Christian Meunier, INFINITI Global Division Vice President. Earlier post.).

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Infiniti unveils I4 Variable Compression Turbo engine; targeting 27% improvement in fuel efficiency over V6 engines of similar output

Green Car Congress

At the Paris Motor Show, Infiniti unveiled the new VC-Turbo (Variable Compression Turbo)—the first production-ready variable compression ratio engine. Infiniti engineers are targeting 27% greater fuel efficiency over similarly-powered V6 gasoline engines, depending upon vehicle application. Earlier post.) Technology.

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Renault Sport F1 introduces revamped 2015 hybrid power unit

Green Car Congress

The ICE will have a new combustion chamber, exhaust system concept and variable trumpets, as permitted by the 2015 regulations. The wastegate is a control device that allows excess exhaust gas to by-pass the turbine and match the power produced by the turbine to that needed by the compressor to supply the air required by the engine.

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Road Test: 2021 Cadillac CT4 Premium Luxury AWD

Clean Fleet Report

with the 10-speed automatic smoothly accelerating through the gears while making a pleasant rumble from the twin exhaust. The short rear deck, with a spoiler, leads to vertical LED tail and brake lights, and the twin chromed exhaust ports. In 286 miles driving through Southern California, we averaged 27.2 powered models).

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Road Test: 2021 Cadillac XT5 Premium Luxury FWD

Clean Fleet Report

Competing in the premium midsize SUV category, the 2021 Cadillac XT5 is right in the middle of stiff competition, including models from Acura, Audi, BMW, Genesis, Infiniti, Land Rover, Lexus, Lincoln, Maserati, Mercedes-Benz, Porsche, Tesla and Volvo. Cadillac’s Midsize Contender. The first thought is this references a 4.0-liter