V-Rally 4

If you haven't started V-Rally yet, I recommend this to be your first achievement.

If you already started it, it should be your last achievement, because it's to start a new career, deleting your savegame.
Before continuing, backup your savegame located at: Steam\userdata\ id \658700 and remember to disable Steam Cloud in Properties > Updates > Enable Steam Cloud synchronization.

Then in-game, go to Options > Data > Delete Data.
Start New Career, complete the tutorial and you will get the achievement.

Despite the description, you must complete 200 races online.

It's not necessary to complete them. So you can restart the same rally 500 times. You can do it in V-Rally Mode or in Quick Game.

I recommend grind this achievement with your best Pikes Peak vehicle (SX4 or MXX) on Mount Rainier hillclimb track, it's about 15 km in 5 minutes.