Have you contacted that witness to see if they got the car's rego?
No-one got the plate.
I should've kept other witness info, a dump truck driver also witnessed it, but he was blocking the road so I let him go. He also did not get the plate. I asked everyone at the time.
Heal up quick @Velocio. Have you contacted that witness to see if they got the car's rego?
http://www.thompsons.law.co.uk/road-traffic-accidents/cycling-accidents-involving-untraced-drivers.htm