17" rims seem to be the standard , but just like most styles , its all up to the individual's taste and perception of what the look is . In my opinion , with so many different rim manufacturers and styles , its next to impossible to say you have to run a certain type of rim to be considered a GL car . If everyone had the same style rim , this would fast become a cookie-cutter style of car . Of course , that's just my opinion , and I am sure there will be someone dissagreeing with what I have said . That's fine ,they are allowed to have their opinions , no matter how wrong they are!!!!