Up front, the hardtop convertible's naturally aspirated 4.3-liter V8 has been bumped up to 490 horsepower, thanks to a tweaked ECU and a new exhaust manifold. The new power goes hand-in-hand with an updated aluminum-intensive chassis which is nearly 70 pounds lighter than last year's model thanks to "cutting-edge aluminium fabrication techniques and construction technologies." According to the automaker, the 0-60 sprint has dropped to just 3.8 seconds.