NOTE: THE ACHIEVEMENT DESCRIPTION IS NOT CORRECT
On the Xbox Console, the description for this achievement (of the same name) reads:
"Drove your Team's Car out on track for the first time in My Team Mode".
Once you finish setting up My Team, "Advance Time" (after adding your events and anything else you need to do). You will get to "Car Reveal". Answer some questions, then see your car.
**ACHIEVEMENT WILL NOT UNLOCK RIGHT HERE LIKE DESCRIPTION SAYS**
Proceed to your first Race Weekend. After setting up your session requirements, and when you are ready, the achievement will unlock as soon as you drive out in Practice 1 (or Qualifying or the Race, depending on your settings)