Of course they do. Just contact them and they usually come back the same day with the offer. You may not like the offer, mainly because to them your car is worth less than it costs them to build a brand new one (less because it's now a used car, plus the configuration is fixed). This is why the old saying goes "you drop 1-2 year in car's value once you drive it off the lot" - this is true for all cars, not just Teslas.
If you find someone who wants that exact configuration you have, the benefit of your car is that they don't have to wait, but the drawback is they are now the second owner and they lose supercharging. If they wanted some other option, different color, they might still be willing to buy yours but at a discount.
I am not trying to rain on our parade btw, just providing you with some facts as your car will only depreciate as you own it, so your loss is getting worse with time. Find a buyer, negotiate best price, but be ready to lose some money, sorry. Or, just keep it.
PS> I was in a similar situation (almost exactly) 2 years ago, my wifes S was in an accident, I was almost sure they would total it but the estimate queue was long and Tesla was going for a factory shutdown, so I ordered. I knew however that if they would fix the car, I would rather just give up the deposit (back then $2,500) rather than buy it and have to sell it. In the end I cancelled the order because the "preliminary estimate" ended up as "fixable", but then when they finally decided to total the car the factory was down for 3 months, so I got an inventory S with different interior color than my wife wanted, but it is what it is. Oh, they also discounted the S'es by $2,500 shortly after we bought it (by including the premium package in the base price), so had I bought it and had to sell it, I would have lost even more money.
Good luck on your sale.
