First things first, welcome to Clubaleno mate

. checking the subframe is good advice. i have pics of mine on the common problems page. images speak for themselves. i have owned my GSR for 6 1/2 months now and never had any other problems and im very pleased.
also there aren't many of these around, unlucky for me theres 3 in my area lol. no-one knowin what it is is the best bit about having one, surprises quite a few people.
only thing im aware of is that they are a 1.8 twin cam 16v engine with between 119 - 125 bhp as standard other than other owners reviews there isnt much info on these