I think you just need to get Golds for a single ship on all the tracks on Rapier class to unlock it. So not very difficulty. Alternatively, if you enter "PHANTOM" as the default name, that unlocks it too.
I'm back on my wipeout steez and finally ready to start attacking the other courses aswell, this is actually 3 secs off the wr and would be 3rd in the wipeoutzone records. Come on guys this game is a beast to learn but highly worth it. Btw would i be able to request adding gareduropa from the classic tracks? it's my fav of all time and i'm going to start attacking it.