Thats an S13 Silvia, though the profile is very simmilar to the R(32 is it?) skylines.
From the top:
180sx
Sileighty (S13 silvia front panels on a 180sx)
S13 Silvia
S14 Silvia aka 200SX
I've no idea why the Silvia and 180SX exist as essentially the same car built on the same platform but with slightly different bodies. I'm sure someone knows better.