The speedtest is there a couple of ways to get you times. When the race starts youre rolling but the time doesnt start until you pass the starting line, stop car before the starting line get as close as possible with out starting the race clock stage car and lauch your car. What i do is run pass 400m/ 1/4 mile exit race watch replay pause replay when youre just past the 1/4 mile bang eta or you can just pause the game when you pass the line hope this helps... and the track special stage sx i believe