There's no single answer to the question of how much the first car ever made cost. The definition of "car" and who gets credit for the "first" one is debated. Several inventors were developing self-propelled vehicles around the same time. Further, the cost wouldn't be easily translated into modern currency due to inflation and the vastly different economic conditions of the time.
If we consider Karl Benz's Patent-Motorwagen from 1886 as a strong contender for the "first car," there's no record of a sale price in a way we understand today. Benz was more focused on proving the concept than mass production and marketing. Therefore, we cannot assign a dollar figure to its original cost.
