Tesla is not a company that tests disguised prototypes. We have never seen one, mainly because the EV maker is not a fan of testing. If that were the case, Elon Musk would probably present the vehicle to start collecting preorders way before it was production-ready. Anyway, a Twitter profile shared a picture of a prototype and said that it “is said to be a compact model of Tesla.”
The picture and the information came from the account @Predict_Cars, which has a fairly large following. We can see why this person thinks the vehicle can be a new Tesla product and also why there is very little chance that this is the case, starting with what we already said at the beginning of this text.