To unlock the Like You Stole It trophy in The Grand Tour Game, you will need to win a split screen race whilst driving the Pantera GT5.
Here are the best settings to use:
Local Splitscreen > Face Off
In the race settings, choose the following:
Car Class: Any
Track Selection: Choose
AI Vehicle Class: AI Off
Car Selection: Pantera GT5
Track Selection: Season 1 - Episode 1
Rabbit Dry Lake
Finish the race and the trophy will unlock.