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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.

Volvo debuts new Drive-E four-cylinder engines

Volvo is introducing a new engine family based on its new Drive-E philosophy, which encompasses "all innovations made to reduce the impact on the environment," the automaker says. Less cylinders allows for less environmental impact, so the new engines are all four-pots. They also were designed to pair easily with Volvo's upcoming hybrid drive system, which "will reach power figures in the V8 territory" and play a "dominant part of the top end of [Volvo's] range," says Derek Crabb, Vice President Powertrain Engineering. Volvo also says we can expect "power curves that give exciting drivability compared with engines with more cylinders."
Volvo says some versions of the engine were designed targeting best-in-class fuel economy. There are both gasoline and diesel options, but the latter of which isn't scheduled for US consumption. Instead, the US will be offered two states of tune of the gasoline Drive-E engine for front-wheel-drive vehicles. Some of Volvo's current all-wheel-drive powertrains will remain available in the US until the company has transitioned solely to the new, fuel-efficient inline-fours.

Volvo Concept Coupe is a long-legged Swedish GT [w/video]

They may not be the first thing that comes to mind when you think of the marque, but Volvo has a long and surprisingly lustrous lineage of coupes in its stable, from the P1800 to the 142 to the Bertone 262C to the 780 Bertone and the recently departed C70. Few of those two-doors have stood the test of time the way the voluptuous P1800 has, a fact the company's designers are apparently keenly aware of. It is that exact model that Volvo says they've drawn upon for this new Concept Coupe, and while the showcar bears little resemblance to the smaller P1800 that inspired it, both cars have a visual grace and presence that has often eluded the brand's grasp.
While not completely ripping up the design language established by the 2001 S60 in 2000, the Coupe Concept is arguably the most radical design statement we've seen from Volvo in well over a decade. Gone is the tone set by the drop-shoulder hood, and in its place is a more flowing, organic look, with the generous proportions of a grand tourer. The concept is a particularly nice piece of work, from its new T-shaped daytime running lamps to its pronounced rear fenders that subtly echo those of the P1800. Interestingly, Volvo informs that the first production model to benefit from this new aesthetic will be the next-generation XC90 crossover - and judging by the teasers we recently saw, this language looks like it'll translate nicely to the CUV's larger shape.
The Concept Coupe is powered by a through-the-road plug-in hybrid architecture composed of a twincharged 2.0-liter four-cylinder powering the front wheels and an electric motor servicing the rears. All-in, Volvo says the system is good for 400 horsepower and 443 pound-feet of torque.