Wrecked 10 cops in a single pursuit in the Ford F-150 SVT Raptor
First, you'll need to find the Ford F-150 SVT Raptor in one of it's 3 Jack Spots. (All 3 locations in video below)
Next, find a cop and ram them to start a pursuit. More police will keep spawning behind you, so do a 180 and drive into them for some head-on takedowns. As your heat level increases, even more will start spawning behind you, so turn around and repeat until the achievement unlocks.
If you somehow run out of cops to takedown, stay within the red/blue circle and wait for more to come.
You can find this car in at least Fairhaven Central and Downtown. In Fairhaen Central it is down one of the roads away from Hughes Park and there is a repair place on the corner were you get to the side street and in Downtown is it on the side of a main road with the water to one side of it, it is pretty out in the open. I recommend getting burst nos at least and then just find an open area on the highway to ram into cop cars. You don't need to be able to escape the pursuit for the achievement to pop. All in all it was alot easier than i thought it would be, this car is a tank! and it will also help with the troublemaker achievement.