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Volvo specs new 450-hp triple-charged four-cylinder engine

When Volvo lifted the veil on the new XC90 a little over a month ago, it announced that all versions would be powered by one engine design: a new 2.0-liter four-cylinder to be offered in various states of tune. That would range, Volvo said, all the way up to a high-output version with "around 400 horsepower," but while it wouldn't specify exact output, now it has.
The new High Performance Drive-E Powertrain incorporates two parallel turbochargers fed by a third electric turbo-compressor. Instead of feeding the cylinders directly, that third unit spools up the twin turbochargers, working together with a dual fuel pump pressurized to 250 bar.
The result is an output of 450 horsepower - far more than the existing 320-hp version and even more than expected. That also works out to 225 hp/liter, far more than the 177 hp/liter boasted by Mercedes-AMG's high-output turbo four and the 139 hp/liter in the Alfa Romeo 4C. Short of a rotary engine (whose actual displacement is the subject of great debate), you'd have to go up to something like the Koenigsegg One:1 (268 hp/liter) to find a higher specific output than what Volvo's boasting here.

2013 Volvo C30 R-Design Polestar Limited Edition [w/video]

Last Hurrah Comes and Goes In A Hurry
It isn't very often that we drive a new car that's already out of production, but that's exactly what has happened with this 2013 Volvo C30. After just five years on the North American market, the last C30 quietly rolled off the assembly line back in December. But before that happened, Volvo decided to send its compact hatchback out on a high note with a little added performance and exclusivity courtesy of this R-Design Polestar Limited Edition model.
The term "hot hatch" is admittedly tossed around a lot these days, but the combination of an R-Design styling package coupled with a good number of extra ponies under the hood should be more than enough to put the C30 in the mix with the likes of the Volkswagen GTI and its not-too-distant cousin, the Mazdaspeed3. The chief problem with the Polestar Limited Edition, though, is that it's priced against sportier all-wheel-drive compacts like the Golf R and Subaru WRX STI, so we decided to spend a week with the Polestar to see if its exclusivity and performance are enough to make up for its higher price tag.

Volvo reveals 400-hp twin-charged PHEV power for new XC90 [UPDATE]

UPDATE: An earlier version of this post indicated that the larger of the conventional diesel engines was a five-cylinder. However all three powertrains announced for the upcoming new XC90 are actually four-cylinder engines. The text has been updated accordingly.
Volvo rolled in to new territory when it introduced the original XC90 back in 2002, creating its first SUV and one of its top-selling models. But that was 12 years ago. In the meantime it's followed up with the smaller XC60, but what the brand faithful and the industry at large have been looking forward to most is the arrival of the new XC90.
Previewed by the Concept XC Coupe at the Detroit Auto Show, the new XC90 is set to arrive later this year, but to keep us on our toes, the Swedish automaker has been steadily trickling out a stream of information and photos. Two months ago it gave us a glimpse inside the cabin, and last month it revealed its new infotainment system, but now Volvo has released details on the upcoming new XC90's powertrain.