More powerful than its predecessor, Aston Martin’s DB9 GT is fitted with a 6-liter V12 that cranks out 457 horsepower, making it the most powerful DB9 ever made. 0-60 in 4.5 and a top speed of 186MPH, it features a 6-speed Touchtronic II tranny & the brand’s tech new AMi infotainment system.
Source: Aston Martin DB9 GT at werd.com