Greetings, my dear Watsons! It's Detective Pux here, and today we're going to talk about something that's sure to get your engines revving: Formula 1 cars on public roads.

Now, as you may know, Formula 1 cars are built for one thing and one thing only: speed. These cars are designed to go fast, really fast, and they're not exactly the most practical vehicles for everyday use.

But if you were determined to take your Formula 1 car out for a spin on public roads, what would you need to change? Let's take a look:

1. Tires: Formula 1 cars are equipped with specialized tires that are designed for maximum performance on the track. To drive on public roads, you would need to swap out these tires for ones that are suitable for road use.

2. Suspension: Formula 1 cars have a very low ride height and stiff suspension, which helps them hug the track and take corners at high speeds. To drive on public roads, you would need to raise the ride height and soften the suspension to provide a smoother ride.

3. Lights: Formula 1 cars don't have headlights, taillights, or turn signals, which are all necessary for driving on public roads. You would need to install these lights to ensure that your car is visible to other drivers.

4. Mirrors: Formula 1 cars don't have side mirrors, as the drivers rely on their team to provide them with information about their surroundings. To drive on public roads, you would need to install mirrors so that you can see what's going on around you.

5. Horn: Formula 1 cars don't have horns, which are necessary for alerting other drivers to your presence on the road. You would need to install a horn to ensure that you can communicate with other drivers.

6. Noise: Formula 1 cars are incredibly loud, which is great for the racetrack but not so great for public roads. You would need to install a muffler or other noise-reducing device to comply with noise regulations.

7. Fuel: Formula 1 cars run on high-performance fuel that's not available at your local gas station. You would need to modify your car's engine to run on regular gasoline.

8. Bumpers: Bumpers would also need to be added to the Formula 1 car to comply with road safety regulations. Bumpers are designed to absorb impacts and protect the car's occupants in the event of a collision. In the high-speed, high-performance world of Formula 1 racing, bumpers aren't necessary since the cars are equipped with other safety features. However, on public roads, bumpers are required by law to ensure the safety of all drivers on the road. So, to drive a Formula 1 car on public roads, bumpers would need to be added as well. 

Now, even if you made all of these modifications, driving a Formula 1 car on public roads would still be incredibly challenging. These cars are designed for the racetrack, and their handling, braking, and acceleration are all optimized for that environment.

So, while it's certainly an intriguing idea to take a Formula 1 car out for a spin on public roads, it's not exactly practical or advisable. Stick to driving your regular car, my dear Watsons, and leave the high-speed antics to the professionals.

Until next time, stay safe on the road and happy driving!