Hello All, This is a very, very basic guide on how to setup a game for a 100 km speed run. NOTE: This does not explain complex strategy such as track positions eccetera. Enjoy

1. Start a new profile on your PlayStation
2. Open Gran Turismo 6
3. Run through prompts and enter name
4. As soon as the intro race starts press start, and then exit.
5. Buy the car 🚗
6. Press start, options, units, and change it from miles to kilometres
7. Go to the status page
8. Press circle and start timer,
9. Go to novice, Sunday cup, high speed ring
10. Enter car settings and buy the following

Sports tires hard

Engine tuning stage 1 Sports computer

11. Enter race
12. Spin the car backwards
13. Drive backwards 100 km
14. Exit race
15. Spam past the replay with start
16. End time when the achievement appears.

Apologies for the bad formatting, sorry. Hope you found this useful. Brad