NASCAR Racing: collectables richard petty, colectors, best bet

Question
I HAVE A RICHARD PETTY CLASSIC 1964 PLYMOUTH BELEDERE ,DIE CAST CAR FROM {WISK LAUNDRY DET}
UNOPENED DATED MADE IN 1997   HOW WOULD I FIND OUT HOW MUCH THIS IS WORTH . THIS CAR WAS OF PETTYS FIRST CHANPIONSHIP SEASON , FIRST DAYTONA WIN , FIRST USE OF THE 426 CU. IN. HEMI ENGINE ,FIRST TIME EVER IN DIE CAST .  

Answer
Sorry but I'm a NASCAR "expert", not toys or collectibles. Your best bet is to get on ebay and look for that car and see what it sells for. If it came with Wisk, I would imagine there were quite a few made. Rare is what makes price. Don't expect it to be worth much.
Sorry, I just don't think much of the die-cast "collectible". My motto (as a collector) is; "If it's sold as a collectible, it isn't." Sure you might find one or two big sales on those collectibles but when they make a ton of them most people that want one already has one. To get a high price you have to find soemone that HAS to have it. The one's that HAVE to have one are the colectors. If they're collectors, they probably already have it.