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Porsche has new twin-turbo V8 in store for Cayenne, Panamera

More power and fuel economy By ,

Last week at the Vienna Motor Symposium in Austria, Porsche unveiled a brand new twin-turbo V8 engine for the next-generation Cayenne and Panamera, various sources report.

It appears this mill is loosely based on the turbocharged 3.0L V6 that powers the Audi S4 sedan. We don’t know the exact displacement yet, but it should be 4.0L.

In the new Panamera Turbo, expect 541 horsepower and 567 lb-ft of torque ― more than the outgoing twin-turbo 4.8L V8, but with "significantly reduced" CO2 emissions.

A cylinder deactivation system with a so-called “half-engine mode” will kick in from 950-3,500 rpm (under light load) to help reduce fuel consumption by up to 30%.

Start-stop compatibility and hybrid applications are reportedly part of the plan, as well.