That Porsche is working on a new four-cylinder boxer engine is nothing new, but fresh reports out of Europe say that we can expect to see the new flat-four (which will power the next-generation Boxster and Cayman) in 1.6 litre, 2.0 litre and 2.5 litre guise - all with turbocharging.
According to British magazine car, outputs will range from 156kW in the 1.6 to 268kW in the 2.5 litre, with the turbo 2.0 producing 213kW.
Torque figures are unknown for the 1.6, but the 2.0 is expected to make 400Nm while the 2.5 cranks out a massive 470Nm - the latter figure being 30Nm more than the 911 Carrera 4S, and 110Nm more than the current Boxster S
With the current Boxster producing 195kW and 280Nm from its 2.7 litre naturally-aspirated flat six, odds are the 2.0 will take over as the base model engine while the 2.5 will be reserved for the next-gen Boxster/Cayman S - or even a top-spec GTS model.
The 1.6, meanwhile, may be reserved for a new sub-Boxster entry level model, though the future of such a vehicle remains cloudy.
But whatever the case, don't expect to see these new engines for a while. The Boxster and Cayman are still fairly fresh on the market, having only being launched in 2012, and their replacements won't come until 2018 at the earliest.
However, the Cayenne is also expected to eventually receive the new turbo flat-four, and with that model on sale since late 2010, the next-gen Cayenne it could conceivably be the first Porsche to be powered by a flat four since the 914 of 1976.
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