headcoat

Hi all We have a Swann H.264 system installed and recently had a break in to my car, this was at night and the images are not too good. I have a few queries, which hopefully someone will be able to answer. Is it possible to add different and better camera to this system? Do they have to be Swann ones or will any do? What would you recommend for low light situations, or should we just fit a PIR lsecurity light? Thanks in advance.

Thanks for the replies, the cameras are PRO-560 with 480 TVL. The car is approx 7m away from the house, and we probably have the camera too high, it is up at eaves level.