Nissan GT-R to get power bump, Spec R version

Since its domestic introduction in 2007 and global roll-out in 2009, Nissan has launched successive improvements on its flagship sportscar, and now word is coming of another upgrade on the way.

According to the folks at 7Tune, output from the 3.8-liter twin-turbo V6 is set to increase from 530 horsepower up to 560. And to supersede the current Spec V model, a Spec R is said to be in the works, dropping another 70 pounds or so for even more extreme performance.

Development of the new GT-R has reportedly been postponed in the wake of the quake fallout in Japan, pushing the car's launch back by several months. These are expected to be the final iterations of the R35 before its successor arrives.