Hi mate, firstly sorry to hear what happened. as far as there being 2 people in the other car, this won't help them, the extra person cannot be classed as an independant witness. so it's still basically him against you. i'm sure if your straight with the police and tell them the truth which i'm sure you've done so far they'll entertain your complaint, what will go in your favour will be your the one reporting the matter and not him, that's hoping he hasn't already stating simular about you, and if the signs of the impact are found on his car i think you have a fair to good chance imo. good luck.
The only way the OP can report this incident legally is "As soon as reasonably practicable" after the event , this would be when he found the damage . The OP did not and therefore he has failed to report an accident . The OP was on his own and would give one statement about the matter , the two other witnesses (in the Mazda) would give their side of the story too . Who would be deemed to be the victim here ? Who do you believe ? There are no independent witnesses so no action would be taken by the Police/CPS .
Many times have the guilty party called the police and stated they have been hit by an offending vehicle and it turns out to be incorrect even though using DDM's logic that they called the police first , no true . The Call , whoever it is from starts an investigation (of sorts) .
If there is damage on the suspects car how can it be deduced who hit who without independent witnesses , it can't , Still no Case for the CPS
The OP will need to report the matter to his insurance company whatever he does as far as the police are concerned , will the OP do that ?
I used to specialise in the Police in everything pertaining to Motor Vehicles from Road Traffic Collisions (used to be Accidents!) to examining vehicles for construction and use offences , Stolen vehicle examinations , examining RTC sites after fatal accidents , liasing and visiting insurers , repair centres , working with the VOSA/DVLA , prosecuting all manner of people in Magistrates and Crown courts and can be used as a Professional witness in cases (If you pay the fee
) etc etc , I did alot of this for around 24 years