How do you turn on the best line in liscense tests?

[TheMoosiah]

I had it the first time I ran a test, but now I can't get it back, and its making me go crazy, because the cars are so incredibly bad in the driving tests.

Help?

 

[jhop13]

I had it the first time I ran a test, but now I can't get it back, and its making me go crazy, because the cars are so incredibly bad in the driving tests.

Help?

Push R3.