rcm crt.5 kit question

I never understood people doing speed runs in a 4wd car it just isnt meant for that type of driving if you ask me.

Now dont get me wrong i love to give my car a full throttle run here and there. But if i want to go fast. I do it in an onroad car or 2wd truck or buggy. Something that isnt as heavy. But i guess thats the fun of the hobby everyone has different ideas on things.