I am an amateur to the game and have the first two licenses. I have won the sunday cup and clubman cup but am finding it hard winning the last race in the 80's sports car cup. i have a mazda mx5 (309 bhp) with stage 2 turbo and various engine modifications, but for some reason when the car gets to about 196km it decides to slow down itself, does anyone out there know what i can do to stop the car slowing down??? please HELP