Questions avout KC / KF2 SE

[vrooom]

Hi i am considering those 2 cars. Im running team c tm2 at the moment. I run on tight EOS track.

I conisder losi 22 4.0, PR, Schumacher, Team associated.

KF2 se vs KC.. is KC a night and day improvement over KF2 SE or its a minute improvemnents that i wouldnt notice as average driver?

Can KF2 body fits on KC chassis and other way around too?