the Rb26dett... it is THE tuning motor... Rumors had it that you can almost double your Hp only by connecting a computer to the ecu of the car (the car having near 240 or so hp stock), and changing almost all the stock setting. One of it's features that people dream about is its drifting option
so in a few words... Its a playstation on wheels and a tuner dream, if you want some vids about a skyline braking the 8sec on the 1/4 mile I will post a link.
By the way its not how the car looks, but how it feels, alot of people comments the look of the skyline saying it's ugly theres nothing really nice about it... but its all about the motor boys. If you need some more info about the engine
type : RB26DETT
In google you should find some good info.