Can you turn a normaly Ford fiesta Zetecs S into rally car ?

I real want to get into rally in the uk and i need a small car that i can race because i want to start to take it very seroiusly because i used to do go-karting and i was very good but it did not have the money to take it on but now i do and i would real like to start racing it in compation and maybe turn it into a career.