Formula 1 cars and road cars share the same components and operating features but that’s as far as similarities go. Formula 1 engines are very difficult to start. Due to the complexity they can’t cold-start, this means warm oil needs to be plumbed through the engine for a couple hours prior to firing it up. As you are aware of, starting a car doesn’t require this preparation, you can just get going right away.
Formula 1 engines also have a high-revving nature. This isn’t as much of a problem in ultra-light F1 cars, but with the additional weight of a street car, it would cause many issues for the engine. This is the reason for why Mercedes – AMG engineers reduced the engines redline to 11,00 rpm for the One hypercar – still a stratospheric number.
Next, the cost. Formula 1 car engineering demands a lot of money to develop. This means a legal street F1 hypercar would have a very high price tag. For this high price, people would expect a hypercar that will last – this is not a strong feature of F1 cars. One engine usually lasting 2 races means they need rebuilding and replacing quite often. For buyers, this constant need for work is a major put off.