That's bad, AMG-Unit. Hopefully your insurance won't be affected - but the worst case is if the other guy is uninsured and/or unregistered. Glad the mechanicals are ok.
Out of curiosity - did you get any pictures? And what did you say to the guy and what did he say as well?
Maybe you should change the title of the thread though - it's not really your fault at all, the other guy
crashed into your CLS..
Hope all turns out well - keep us posted, if you can.
