Hey there
I was using this guide(walkthrough) for my own privilege and it felt bad so here it is http://www.mahalo.com/gran-turismo-5-walkthrough it is very good and very helpful, just a reminder that this is only career guide not the actual Trophy Guide

Thank You!! needed that probably going to take a long time to plat

If Someone wants a trophy guide I recommend this site www.ps3trophies.com probably the best one out there.
Here is the direct link: http://www.ps3trophies.com/forums/showwiki.php?title=Gran-Turismo-5-Trophy-Guide