the graphics with gt4 are fine.
they're much better than 3.
if you play gt4 on ps3, it will be much better than ps2.
ps2 cannot handle the graphics that the game programmers can.
they had to "dumb down" gt4 to comply with ps2.
which sucks.
the only thing i'm worried about with a new Gran Turismo is the handling.
GT3 had amazing handling. i could drift a car pretty damn good.
GT4 has this habit of understeering to oversteer, to spin. because the handling characteristics are a bit odd...
you can adapt to GT4 easily. because you learn to let the game almost drive for you in the corner. it requires much less driver input than GT3. which is bad.
and for christ sake.... GT5 better let us do donuts and shit. with visible marks.
when i can't rip cyclone's in a 500hp evoV, even in a rally course... something is horribly wrong.