Try recreating your vehicle in Forza Motorsport 4. It's a nice tool for testing the look a set of wheels on the GS as well.

http://www.flickr.com/photos/79087095@N03/8625877854/http://www.flickr.com/photos/79087095@N03/8625877854/ by http://www.flickr.com/people/79087095@N03/, on Flickr

 

Sweet! I'm going to have to get this game now lol.

 

The Lexus GS 350 F Sport AWD is a free download for Forza Motorsport 4.

 

The standard front bumper cover is also available in the game, as is conversion from AWD to RWD.

http://www.flickr.com/photos/79087095@N03/8624884465/http://www.flickr.com/photos/79087095@N03/8624884465/ by http://www.flickr.com/people/79087095@N03/, on Flickr

 

This game goes in depth with the 4GS. I love it!

 

lol I downloaded this car there as soon as I paid my deposit for the real one.

 

I believe this was the game that allowed you to swap the LFA's V10 into the GS?

 

Yes, that is an option in the game.