Drifts not counted on speedlist 18

I think this is one of the 4 (two on racer, and two on cop) where you have to do the drift in one go. Like 230 yards at once. All the smaller drifts don't count to add up. The speed lists with these killed me! I found using a tier 1 car (the Charger SRT8 in my case) on the big sweeping corner just before the long bridge on King fisher Road and I was able to get the long drift. Yes you can switch cars while doing one speed list. I have used 4 different cars to complete 1 list. Hope this helps.