grand am rims
 

hello everyone! i have a 2000 2.4l grand am which i want my 16yrs old to have. but i want to "cheek it up" a little. i have the stadard steel rims and i'm looking into getting some cooler rims, but w/o busting my wallet. the standard rims are 15"x6" with a 5x4.5" bolt patern and time has affected them (the usual wear and tear).
my question is: can i go to 15"x7" rims and keepthe tires?
thanks!