This is what I like to call a domain name that is trying too hard.
It's a popular niche for sure... But the name is too long, too specific, and too easily replaced by another name at registration fee.
At this very moment, if I wanted to start a cheap car website, I could register:
CarsForSaleForCheap.com
CarsForSaleForLess.com
CarsForSaleUnder9999.com
CheaplyPricedCarsForSale.com
And none of those would be very good either...
Long domain names have their place, but they typically aren't worth nearly as much, and they only have value if they match an exact product or service.
Examples:
PersonalInjuryLawyer
SportsCarAccessories
If you registered it within the last few days, I would ask to delete it and get your money back.