If it's a C4, then check all the options to see what you get, based on the standard for what comes with a 4. Is it brand new or is there some mileage on it? If there's some mileage (maybe a couple hundred) and you plan to keep it a long time, it shouldn't be a problem. It's a great price, better than I got thru AAA car buying. Dealership sounds desperate to unload the 2013s.
if it's new and wow OTD price, GG take that DEAL!!! if it's used...depends on how much miles it got on it...I got offered a used 12k miles c4 for $20900 OTD, so I guess depends on how much miles that C4 has