Does this use the factory roof mounting holes?

Yes. This wing is designed to align with the existing factory roof hole pattern, so you can use your vehicle's original fastener locations. Verify hole spacing on your specific vehicle's roof before ordering to confirm alignment.

Will the spoiler interfere with my trunk lid or rear hatch when it opens?

No. The Abarth-style geometry is positioned to clear the rear hatch travel. That said, check your vehicle's hatch swing clearance before installation — roof modifications vary by trim and production year.

What prep work does FRP require before painting?

Sand the surface with progressively finer grit to smooth any minor imperfections, then wipe clean. Apply your chosen primer and paint system per the product manufacturer's instructions. The FRP surface is stable and accepts most automotive finishes without issue.