was doing about 80-85 on the mway in 5th with an 02 reg astra dti right up me arse. both had driver+pasenger. he was much too close so i booted it in 5th upto about 100. didnt pull away mcuh but i did pull away. he was defd going for it. both quite young etc and looked the type. would this be about right as i thought id take off from him a bit quicker??