It was either a redrill or an adapter like you said or a G20 hub-swap. Either way I think it's way too much work to do and probably pricey as well. All that to make the Spec-V rims work on a 4x100 lug-pattern car? Thanks, but no thanks! Plus, the Spec-V rims have been reported to be so soft that many have bent them more than once. That is why the '04 Spec-Vs came with new and re-designed rims.