I admire your enthusiasm and as much as I love Arrma I don't believe going 200mph odd with the Limitless is at all possible.possibly (highly highly unlikely) this car may break the rc car land speed record wich is standing at 202 mph.
Have you seen the World record holding car?
I have and there's a lot of aerodynamics/research involved with it. Not so easy as just putting the biggest motor etc in.
Best of luck with your build though and hope you see some big numbers.