"and the two posted by Andvari would loose their shine if rendered in A6"
Those models would look awesome in gamestudio, all the detail is painted on the texture.The quality might be slightly less when ingame , but it would still look very very good. GameStudio renders better than some people give it credit for , but like with any other engine , the source material is crusial to how a game looks. Of course , models like the ones Andvari posted can run you anywhere from $1000 - $2000 , which is why you dont see them in any gamestudio projects.