That's a ST165 engine alright but there's nothing Group A about it i'm afraid...someone has been telling you porkies. It's just your standard ST165 engine but it does have extraordinarily low km's if that number is accurate....you would be hard pressed to get a Gen III from an ST205 with those km these days. It does look to be clean and in good nick, good luck with the sale but me thinks you are a tad high in price for a 1st gen 3SGTE.