I am not sure if this helps -http://en.wikipedia.org/wiki/Causing_bo ... us_driving
It seems a 'better' offence for the Police to investigate, IMHO Criminal Damage is stretching it a bit, but if it is investigated as CD it may be the case that a prosecution for Furious Cycling could result (although, again, i think unlikely).
Have you insurance - CTC or household insurance - it is worth checking with your insurers to see if you have cover.
Although it is odd, the legal definition of an accident does not include cyclist vs cyclist, or indeed cyclist vs anything (except MPV) - from memory it begins "owing to the presence of a mechanically powered vehicle on a road " - it seems that cyclists fall into a grey area and perhaps this is the reason that there is no mandatory requirement for insurance for cyclists. This leaves the only option as a civil claim which is not an easy one.
Here is the legislation - http://www.legislation.gov.uk/ukpga/1988/52/section/170
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