Reply To: Should I sell my 2015 C300 to CarMax or list on Facebook? › Forums › Buying & Selling Advice › Should I sell my 2015 C300 to CarMax or list on Facebook? May 23, 2025 at 7:17 pm #2154 Monnie Try to sell it for the next 5 days, watch the negative offers you get, and take it to CarMax on day 6 to sell it.