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Uber releases fleet of self-driving vehicles to select few in Pittsburgh

Starting today, a select group of Uber users in Pittsburgh, PA will have the ability to request a self-driving vehicle. If a self-driving vehicle is in the area, Uber will send it, as well as a safety driver, to drive loyal customers to their destination. The announcement to give customers the opportunity to get a ride in one of Uber's self-driving vehicles comes roughly a year and a half after the company set up its Advanced Technologies Center in the city. On Tuesday, the company offered a few members of the press the opportunity to ride in one of the company's self-driving cars. The fleet, despite Uber's collaboration with Volvo, was comprised of 14 Ford Fusions equipped with a host of self-driving technology, reports TechCrunch. Uber is giving away free rides as a way to obtain real-world testing, which is crucial for self-driving technology. Recently, nuTonomoy beat Uber to the punch by launching the world's first autonomous taxis in Singapore. While the choice to release its self-driving cars in Pittsburgh mainly comes down to the fact that its ATC is located there, the city faces four seasons and its difficult streets that are comprised of bridges, railroad lines, and an irregular grid layout will prove to be a challenge for the autonomous cars. Since the self-driving vehicles are still being tested, the cars will come with two full-time Uber employees. One employee will loosely grasp the car's steering wheel, ready to take over if something goes awry, while the other will monitor the computer's software. As TechCrunch points out, Uber's autonomous vehicles drove in a similar manner to a regular driver. It obeyed traffic laws, mimicked a driver by coming to stops gently and at other times abruptly, as well as driving slightly into another lane to dodge a poorly-parked vehicle, reports TechCrunch. There's no word on whether regular Uber customers will get a ride in one of the company's Fusions or one of the Volvo's that its working on. Automakers and companies alike have been in a race to put autonomous vehicles on the road. Tesla recently updated its Autopilot system, Apple laid off dozens of employees to reboot its self-driving car project, and Google is working giving its autonomous vehicle the ability to detect emergency vehicles. While this is a large step for Uber, vehicles with autonomous capabilities still have a long way to go.

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 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.