It takes Toyota around 17 to 18 hours to produce one vehicle. This includes stamping and welding the metal, painting, assembly of parts and the whole, and inspection. The time can vary according to the number of models manufactured at a particular factory.
A car from Toyota includes around 30,000 parts per vehicle, each of which must be manufactured. If several model types are produced at one plant, the time to produce a vehicle can vary, as the plant must produce unique parts for each of the models. The planning and design process is not included in the actual manufacturing time and can take many years.