Had a 19yr old hit me in a tunnel doing 100mph 100 yards from an exit where the speed limit was less than 30 and he was merging into my lane.

Only have one photo however my wife took more.

Is there structural damage or will i be able to drive it again?

Have great insurance however i liked the car so.. Please!

take a look at the boot floor, if there are creases or cracks it may not get repaired due to cost

I would say they will declare it un-economic to repair, as said above if you can check the boot floor and the rear passenger, measure the distance front to rear between the centres of the wheels left & right sides to see if the rear axle/mounting area has been damaged, but it doesn't look good :(