I made this video on how to get the The Pain Train achievement. Go to Quickplay and go to Race and Select the Expressway. Basicly what I did to get it, I picked my car and from the start of the race I just drafted the A.I. Cars til my Power Meter was full to the Red, then once I got to the 3/4 mark of the Map where the Train is I waited til the Red Marker appeared above the cars by or under the Bridge and then I Hit the B Button and within a few Seconds of the Bridge and Train coming down the achievement Popped. Note: Try to have 4 to 5 A.I. car in front of you when you do this so this way you wont have to restart the race.