Collisions like this are rarely straightforward. From the facts you have
given it seems most likely that the insurance companies will agree 100%
liability by him.
The reason I say probably is that there is a doctrine of "firmly
established on the road". Let me give you an example:
if he had almost completed the manoeuvre and you hit his rear wing, then
although he pulled across the front of you, he was already established in the
road in the middle have this manoeuvre.
If for example he had only just started to turn across the front of you and
you hit him head-on or with your driver's side wing then, (provided you were on
your own side of the road and also provided the other driver does not lie
through his teeth!), Then there can be almost no doubt.
I am not altogether certain how your passenger-side wing could contact his
passenger-side wing which is why I asked if you had swerved to the right.
Can I assist further?
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