Crikey. Sounds like a big smash (didn't see any photos though) but not as big as the handbags between you and the other geezer !
Reading that makes me question my own responsibility when driving that fast. I brought my Z28 to Muncih from England last Sunday and just before Ingolstadt I stuck my foot down and gave it some beans. I held about 142mph for 2 or 3 seconds before returning to my cruising speed of 85-90mph.
I couldn't resist it any longer, it had to be done. I'd driven some 500 safe and ordinary miles already and now I was well into Germany, the road (A9) had cleared a bit and every 5 seconds somebody was speeding past me doing WELL over 100mph. Not perfect conditions because it was dark but it was dry, the engine was well warmed up, there were 3 or 4 lanes, the road was straight, some importance should be placed on the fact that I was alone and most of all it wasn't illegal.
How to justify it ? Well, I'm human, the car is capable of it and if you wrap yourself in cotton wool for your entire life you die having had a very boring life.
On the other side, I put my own life at risk and I have 2 young children. I also took a small chance with the lives of other roads users who I should not expect to be aware by looking in their mirrors because very often they do not.
I consider myself to be a fantastic driver, not because I'm fast but I think I'm fairly safe. I spot dangers everywhere where most people wouldn't even consider it and I put that largely down to riding motorbikes.
I think you got very unlucky on the A5. I wrote off an old Toyota a few years ago on the A5 towards Darmstadt because someone didn't look. I missed all the other cars, span mine like an old 45" and managed to continue my journey after taking a short breather on the hard shoulder. Got away with it in other words.
You're 18 so if you do get another performance car I'm sure you'll be a little more aware of the dangers next time.
Go careful out there chaps.