Indeed, looks much better...T-Shine is right, fix that and make sure the highlight doesn't go away more than 1px from the black line. Second thing, the badges. Since it looks like you don't have enough space on your body texture, I'd suggest you make a new 512x512 texture and put all of your badges so they'll be high-res and look good, even when you really zoom in tight on them. So make that new texture, put in the RS4 badges and Audi's emblems and whatever that is small and needs to be high-res, then make'em a nice alpha channel, and last thing to do is small planes that will be mapped to them, to get them located nicely on the body follow your current texture which seem to have them located about right.
P.S., no way your main texture is a 512x512, make that 1024x1024 at once.