Just pick
any Subaru you have in your garage.
If you don't have one, they are on sale during this Forzathon event (February 28th)
Now, simply go to the
Car Meet at the airstrip.
Completing the drag race is enough to bag this challenge, but also
You do
not have to win the race! Just cross the finish line.
Here's a vid.
Both challenges unlocking at the end of the vid...
(Please note : the clips were recorded by Xbox One's Game DVR. Therefore, any eventual unlocking achievements appeared on my screen were not registered by the Game DVR)Thanks for voting thumbs up if the guide was useful.
Any suggestions to improve the guide are welcome.
Good luck!