C*nt of the day LS58 FKX

Whether or not your witnesses want him prosecuted has no bearing on whether the police/CPS will deem it a worth their while to pursue criminal proceedings.

Plus, lets put this into some perspective. A huge body builder type driving a 2 year old range rover that punches people doesn't conjure up an image of a particularly nice piece of work. You might be opening yourself to a whole lost of unpleasantness if the police do take things further.

In hindsight, you have been better off letting saying nothing at the time, making note of his registration and resorting to more clandestine methods. E.g. quick call to 999 to say you saw a black range rover being driven erratically and nearly hit some school children followed by a stream of calls to crimestoppers, etc... with some incriminating info.

I hope everything turns out OK for you.

+1 to the above approach - sounds like one to stay well clear of.

Hope your back recovers soon.

Purely on the grounds of self preservation, pick your battles/methodology carefully