I would just like to share a little tale with you all that happened to me yesterday. I am tirred and have the flu right now so exscuse me if this is not as descriptive as some of you would like. I was going down I-69 toward Lansing, cruising in the Z4 with the top down because i was enjoying one of the last warm days we are gunna have here in Michigan. Anyhow i usually drive that portion of the highway at about a steady 95-100 MPH depending on traffic. Well I'm going along at my normal cruise of around 100 and i notice this Mustang like keeping up with me. The car has all the body language that he wants a race. All of you know the signs, you can juss tell when someone is itching for you to juss initiate it and put your pedal to the floor. Anyways before i do anything i kinda notice that this is no normal mustang GT or Bullit. I could tell there was something special about this car. This guy is right up on my ass going down the highway at 100 so i floor it and take him up to about 145 MPH. Just then I wave to him in the traditional sense that "hey buddy, yeah its a BMW." O Yeah and not to mention this whole time even when im waving to him the BMW is at Wide Open Throttle and im approaching the speed limiter of 155. When I wave to him im guessing he is about 2 car lengths behind me. As soon as i wave i see him juss with explosive acceleration come up and start to pass me. He just flies by me and i look over and its like some 60 year old, white haired man in a golf hat. before he passes me he looks over with a big grin, that half "hows it going man" and half "HA HA FUCK YOU" look lol. So when he finally blows by me, and to mention again im going 150 MPH when he does, i get a good look at the back of his car :banghead , yeah in black lettering all i see ...." COBRA" I'm like fuuuuck, i need to take this american steroid car around some curves cuz there is no way im beating him in a highway WOT race. In the end this guy was really kool cuz we fucked around all down the 30 mile stretch of I-69 i drove that day. I hope you all enjoyed this, sorry i couldn't write it a lil better.