Nitro v Electric RC cars ??????

Hey, i am a beginner RC hobbyist, I was just wondering, in Professional RC car racing and championship competitions, what is favored, Nitro or electric?

Nitro. Check out this RC car that has won 2009 viewers choice: http://www.gamesncs.com/rd_p?p=186122&t=9528&gift=29807&a=29807-yanswers.