Check this out and let me know what you think.

If you do a search for 'prestige luxury car' my domain ranks 11.

This is the URL: http://www.prestigeluxurycar.com/

There are almost half a million pages listed so it is fairly competitive.

How much is this domain name worth?

I would say mid $xx to a reseller and potentially in the low - mid $xxx if you can find the right end user.

I suggest you perform a paid appraisal on your domain name to know exactly the value of it. You can visit domaindiving.com. On Express appraisals, you can get results in less that two hours.