Thanks for the concerns; That's why I love rs. Pulling up google, narfy is referring to this
http://www.delica.ca/forum/download/file.php?id=14794
Thanks coz I honestly did not think of this because I've only swapped rims relating to toyota (gt/gts/aftermarket rims).
I assume if we use the same factory scion lugnuts and they hold the gts rims, then problem solved. Otherwise I'll scavenge around for some proper lugnuts (acorn/ball seat)
Also, no brz owners?