I think that answer is dependent upon what engine is in the car and if it's an OEM or aftermarket, original or replacement.
I wrote about my 2009 Ultra High Relief recently. I got into coin collecting because I inherited a ton of coins when my father died. I got to reading about coin collecting and decided that 1, I wanted to have some gold coins, and 2, I wanted some hedge against inflation. (I have been a CPA over 30 years and should know better.) Anyway, I contacted a friend that bought and sold coins. He had just bought 3 gold coins, ungraded, that I bought a 1895 $10 Eagle for about $850, a 1904 Double Eagle for about $1,200, and a 2009 Ultra High Relief Double Eagle for $1,300. I sent the eagle and double eagle in for grading. The eagle was graded MS61 (Red Book for MS60 is about $1,000, the 1903 Double Eagle came back "UNC DETAILS: OBVERSE SCRATCHED") VALUE=?, and the 2009 doesn't even give a price on MS68, nor are they advertised on ebay or any other place for MS68) It was a shot in the dark. If you are lucky in cards, try your luck with NGC, PCGS, or any other TPG.
I not sure but I thought I read an article about there is a very low ounces available on the market. I think a small amount is used in cat. converters or maybe that's platinum. Paladium may be the new gold coin??????
There are probably a lot more uses for silver than for gold. Go figure... I'm trying to decide whether to buy an ounce of either Platinum or Palladium. I have none of either.
I would go with Platinum, i think that,s my direction, just because i dont Think it could drop much more and palladium can be wildly unpredictable.
Buying either is foreign to me as I know nothing about either of them. Then again, I buy stocks without studying them for decades, have money in funds I rely on indexes a fund managers to pick, so, a piece of metal I know nothing about? What the heck, bring it on! Seriously though, I'm only thinking about it, but I've never thought about it before. So that's a start.
Everything is a crap shoot, you can say you know everything or nothing and Still come out behind the eight ball, sometimes you just have to go for it