The quick answer is low weight, powerful engine, and excellent cornering and braking ability. It's no use just being fast in a straight line, many of the fastest cars round a track are quick because of their ability to corner well. This can be achieved using aerodynamic aids to increase downforce (and thus grip), and sticky tyres. HAving good brakes also allows the driver to brake as late as possible into the bends, thus increasing the average speed around the track, and get good lap times.
Chat with our AI personalities
The first thing you will need is lots of money. Auto racing today is very expensive. Without huge quantities of money you cannot be competitive. Secondly you need the knowledge and skill to build your car. Thirdly you will need to know the regulations for building a car for the particular type of racing you wish to participate in.
seats
roll cage
gear stick
stearing wheel
wheels
handbrake
speedomiter
fule gage