Are you legally permitted to drive that vehicle? Is the car actually a 1:10th scale model? Have aliens just invaded earth?

Sorry, but that’s not how conversation works. The person explained the situation and asked a question; it’s entirely reasonable for the respondent to answer based on the facts provided. If every exchange required interrogating every premise, all discussion would collapse into an absurd rabbit hole. It’s like typing “2 + 2 =” into a calculator and, instead of displaying “4”, being asked the clarifying question, “What is your definition of 2?”