I had a similiar experiance coming home from college one day. Long straight boreing rods, most with 55 mph limit, most people do 75mph including RVs.There was a stop sign up ahead and one car infront of me and a passing zone on the other side of the stop sing. I love this interesection because I'll drop clutch and fly by the person or 3 infront of me on the other side of the intersection. Well a fairly new looking bmw pulls up behind me some old guy driving it. I do my usual thing pass the guy infront, the other BMW is on my ass as I do so, at the end of the zone a car turned in infront of me slowed down, passing zone came up I hit 2nd at about 45 fully floored it, here comes the other BWM, ran it up all the way shifted the 3rd made it around the car, BMW flys by me. I see 740 or 745ii maybe iL on the back of the car couldn't see clearly with the huge speed difference, So i keep it floored in 3rd, ran outta gear, went to 4th ran outta gear, and the other BMW is still pulling away from me. So I let that one go, never saw it again.