here is the Nissan A31 Cefiro, i simply love this car, it actually uses a modified silvia platform but has a factory RB20DET. which is convient because you can fit the cefiro cross member and other bits to a S13 and fit a RB20DET straight in.
here are some specs
Make/Model : Nissan/A31 Cefiro
Engine : RB20DET
Piston Displacement : 1998
Layout : Front Engine, Rear Drive (FR)
Stock Power : 205hp @ 6400rpm
Dimensions
(Length) : 4690mm / 184.6"
(Width) : 1695mm / 66.73"
(Height) : 1375mm / 54.13"
Wheelbase : 2670mm / 105.1"
Curb Weight : 1320kg / 2910 lbs
and pics