you might want to view this thread as there has been much discussion regarding the GT4 physics.
As for can it be done? yes, many people have posted DS2 videos, including me (link in my sig, shameless plug). Just keep practicing it will come to you.
Welcome to the boards by the way!
In the future, its generally a good idea to use the search button up top to make sure your question wasnt already answered before or if there is a current thread discussing your topic of interest.
