Easily done with one controller.
Go to Arcade Mode --> Splitscreen Race. Track doesn't matter but you might wanna keep it short. When you can select cars pick the one you wanna drive (Evo or Impreza). After you picked the car for Player 1 hold down the
button on your controller and switch to controller 2. Select the car for Player 2 and then switch back to controller 1.
Now all you have to do is finish the race as Player 1 while Player 2 just sits idle. The trophy unlocks when you get back to GT Life.