That is a really nice car, somtimes when I list stuff I later feel that it is worth more than I listed it but normally what happens is that if it is really worth more the auctions will take to a really nice payay. and there is always the option to pull the auction.
also if you feel that it is worth more list is for what you really want for it and if it does,nt sell relist it for a little less if you relist an item twice and it sells the second time you only get chared on listing fee not 2.
Good luck.