From scratch in your garage with minimal help from others is the short answer, BUT!... The soap box derby organizers realized that people don't have the skills or the tools, so they sell a kit.
CArs that have wheels fast engines and go vroom vroom
driver
1971-1976 gm cars
Make it small light, and stylish.
the co2
A short stroke Nissan engine with a high performance transmission. That makes a car's wheels fast. Or an engine with High torque.
nitrogen
Varooooom
Not all sports cars are fast. What makes a car fast is a compilation of great engine power, aerodynamic, brakes (improves handling), down-force and a couple of more factors.
putting it on gear 6
it makes you go very fast!
If you want acceleration then get a turbo, that easy.
The Kentucky derby
they have special interceptor engines fitted at the factory