hi, first post here, been staring at lots of models here for a while though

finally decided to put my latest car here, its the first one that actually looks good to me
renders are here:
http://users.skynet.be/reinhart/bmwz4/
didnt have many problems so far except the line on the side, i have NO idea how to do it
http://users.skynet.be/reinhart/bmwz...z4_30i_800.jpg
im polymodelling so i made a square there, extrude in and out and chamfer to get the circle, but if i chamfer the line i screw up the circle thing
same problem at the doorhandle (so i didnt chamfer the last edge), and at the fuel thing i didnt try yet
im going to redo the chairs and headlights, somehow i didnt really notice theyre no good
another thing are the textures for the lights, dunno where to get them
and are there any good HDR tutorials? when i put one on the background its like 4 very blurry pixels