What makes a car fast
So what makes the vehicle fast? There are several factors that contribute to the general speed of a vehicle, let us consider some of them.
Power
The engine is the powerhouse of the car, serving as the main source of propulsion, engines produce some sought-of work-energy rated as in horsepower, one horsepower is 550 foot-pounds per second. So the amount of power generated by the engine is directly proportional to the speed of the car!
Power Train
All the systems involved in the transfer of the energy produced from the engine to the wheels make up the power train. During this transfer process, some energy is lost due to friction and general resistance in the power train system, cars with efficient power trains tend to be faster than those that lose so much power along the line.
Weight
Surely, you already know why big vehicles are a lot slower than smaller vehicles, so even with an efficient power train and a good engine, the speed of a vehicle might still be low if the weight is too much for the engine.
Aerodynamics
Have seen cars with some sought of streamline bodies? These cars are structures to reduce air resistance and they move. So if a car has a good aerodynamic design, it is surely going to be faster than a car that does not have one