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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.

Volvos will brake for bicyclists with new detection technology

Anyone who pedals a bicycle knows that one of the biggest dangers to riders is a motorized vehicle - Volvo estimates that nearly 50 percent of all cyclists killed in European traffic have collided with a car. In the United States alone, 618 riders lost their lives in bicycle/motor vehicle crashes in 2010, and the number of injuries surpassed 52,000.
To help drop those numbers, Volvo has just announced Cyclist Detection with full auto brake - a technology that detects and automatically applies a vehicle's brakes when a cyclist swerves in front of a moving car. The basic components of the system include a radar unit integrated into the front grille, a camera fitted in front of the interior rear-view mirror and a central control unit. The radar is tasked with seeing obstacles in front of the vehicle and calculating distance, while the camera is responsible to determine what the object is. The central control unit, with rapid processing capabilities, monitors and evaluates the situation.
The technology, which will be sold bundled with its Pedestrian Detection and called Pedestrian and Cyclist Detection, will automatically apply full braking when both the radar and camera confirm a pedestrian or cyclist are in the immediate path of the vehicle. According to the automaker, the technology will be offered on the Volvo V40, S60, V60, XC60, V70, XC70 and S80 models from mid-May in 2013.

Volvo studying test of electric roads in Sweden

Volvo already announced the results of a study of wireless charging using a stationary C30, and now it's embarking on a more ambitious study of wireless charging involving moving city buses. Next year, in conjunction with the Swedish Transport Association, Volvo will build a section of electric road up to 500 meters long that would use inductive charging to refill the batteries while the bus drives over it.
Right now, the company's Hyper Bus diesel hybrid has to stop to plug in and charge at the end of its route. The company is looking for a way to keep buses in service while being able to run on electric power for greater lengths of time. The new line used for the study will be called ElectriCity, and will come online in central Gothenburg sometime in 2015. There's a press release below with more information.