Got mybike back from the LBS this morning and no damage apart from scratches. I am off work untill 2nd Jan and tanked up on pain killers now.
Looked at the data on the Garmin and went from 19mph to 15mph in 2 seconds then to 0mph in 1 second, The driver has offered to pay for anything damaged in the incident which currently is £68.26(Helmet, Rucksack and perscription charges)
Damage to helmet
I don't know if the helmet saved me from any head injury but am glad I was wearing it.
Have spoke to the police officer again and it looks like the driver will be asked to attend a safer driving course.