Universal is usually 5x100 and 5x114.3 bolt patterns unless its a really goofy wheel.
well they came off a 2000 impala so they will fit a GP but will the tires fit? i run basically the same tires so i guess they should fit. But for some odd reason they rub on the impala
'97 GTP - Stage 2 Heads, 90# Springs, 1.9 Harland Sharp Rockers, Gen V, 3.0, Intake, N* TB, LQ4, FSIC, 10.5mm Wires, Poly Mounts, SLP Headers, Borla Exaust, Built Trans - SOLD*
'08 G8 GT - 6.7L 408CI Stroker, 239/254 Cam, Fast Intake, 102mm TB, CAI, Full Exhaust.