Sorry for your loses all the way around. Unfortunately, even though you have witnesses that he merged into your lane; you hit him. I'm guessing at best it will be a shared guilt responsibility. I'm just bracing you for that. I hope I'm wrong. On the bright side; you're o.k., and now you can finally get that car that better suits you, one with better aftermarket support. Perhaps one that already has a turbo in it. Good luck.