I did this with the Ferrari F12 Berlinetta that was given as the Tier 5 reward from Forza Rewards
. I made a setup that you can download if you want by searching for '7000 Drift Achievement' in the tuning setup section.
Get in your Ferrari and then head over to 'Tune/Upgrade' press X to tune the car and then goto setup manager with select. You can then press select again and then search for description '7000 Drift Achievement'. Load the setup, it's free.
Once it's loaded press Y to test drive. Select Indianapolis Motor Speedway (the forth one) but before pressing A press X to turn off assists
. This will help the car get sideways for longer.
Braking ABS OFF
Traction & Stability Control OFF
Damage, Fuel & Tyre Wear OFF
Track is the oval, Brickyard Speedway.
Pause the game once it starts and go to HUD and turn Drift HUD to ON
I was doing about 170 coming into the first left after the long straights. Stay to the right on the straight and give it a bit of handbrake to start the drift as you turn left, then steer right into the drift to keep the back end from sliding out too far and feather the throttle a little if it goes too far out.
You don't have to do 5000 all in one drift as you can see from the video I made, the two smaller drifts after the big first one added to it's total.You can carry on round here as long as you need to
, on one of your 20 perfect drifts you should get the Drifting away achievement too. I already had this from earlier drift attempts but I decided todo the rest on an empty track as the other cars were getting in the way.
The Sidewinder achievement popped after I paused and selected finish race not during the test laps.