Porsche revealed some revised specs for its upcoming 918 Spyder supercar, upping the previously stated 795 horsepower to a total output of 887 horsepower. Other key specs include a 0-62 mph time of 2.8 seconds and 0-125 mph of 7.9 seconds. Porsche also detailed the vehicle's systems and let a select few journalists drive production-spec prototypes.

The new HSV Gen-F range has been revealed with serious performance and styling upgrades. A range-topping GTS model features the same supercharged LSA powertrain as the Camaro ZL1 with 580 horsepower and 545 pound-feet of torque. We're hoping this supercharged sedan comes to the U.S. as a range-topping Chevrolet SS model.

Acura confirmed the upcoming NSX hybrid sports car will be designed, engineered, and manufactured in the U.S., with production taking place in Ohio. Acura told us the key to the NSX's performance will be its hybrid system, which is being dubbed the Sport Hybrid Super-Handling All-Wheel-Drive System (Sport Hybrid SH-AWD). No performance specs have been provided yet, but Acura is promising one of the best driver experiences in the luxury sports car segment.

Porsche 918 Spyder Now Makes 887 HP, Goes 0-60 MPH in 2.8 Seconds

HSV Gen-F Range Of High-Powered Holdens Debuts: Video

Acura NSX Chief Engineer Talks Performance, Ohio Production

Nissan 370Z NISMO Heading To 2013 Gumball 3000

James Bond-Style 1967 Toyota 2000 GT Sells For $1.15 Million

Tesla Model S May Get Battery Swapping Soon: Report

2014 Cadillac XTS: More Power, More Luxury, More Tech

2014 Bentley Flying Spur: Joy Ride

2015 Chevrolet Cruze Spy Shots

BMW And Pininfarina To Mark New Partnership With Gran Lusso Coupe


Follow Motor Authority on Facebook, Twitter, and Google+.