Yes, the hub is identical
Same 5x110 PCD and same 65.1 mm centre bore: wheels from Dodge Dart bolt on and centre on Pontiac G5 without rings. You still need to check the offset and tyres, detailed below.
≈: width estimated from the original tyre size.
Wheel by wheel: offset and tyres
Each original wheel from Dodge Dart is compared with the one from Pontiac G5 of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.
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≈7Jx17 ET41 · 225/45R17 — Check on the car
Compared with the original ≈6.5Jx17 ET45 on Pontiac G5: shock absorber side +2.3 mm, wheel arch side +10.4 mm, tyre diameter −0.4 %.
Comparison for guidance only (estimated width). Check in detail
Before fitting the wheels
An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Pontiac G5 (Ecrous - 12x1.50), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.
And the other way round: wheels from Pontiac G5 on Dodge Dart?