How can I make my own die cast car?

How can I make my own die cast car?
Research a process called "lost wax casting". The process is simple really. Make a model of what you want using wax. Put a stem on the model somewhere that you can peel off when it turns to metal. Put the model into a special sand or heat resistant casting plaster. Heat the plaster or sand casting to melt the wax and bring it up to the approximate temperature of the liquid metal, then pour in your heated/liquified metal into the spout that was created by the stem. There are a couple methods of forcing the metal into the small cracks and you'll find them by researching the process.