Take de car for a computer check .. N Keep in mind if the car has dese three thngs perfect its safe to take de car ..Those three important thngs are as follows :
1) Engine and its performance
2) Gear and its transmission sounds
3) Chasis of the car .

Rest A/C and starter ..
Hope d Car u found is good frm dese points as a Magna is a Powerful and Stylish car ...:D