In the classic X-Wing and Tie Fighter PC games you reroute energy to different systems (shields, speed, lasers) while dogfighting. During the Death Star trench run, going in full throttle would have meant dumping lasers and shields for pure speed to shoot your proton torpedoes at the last possible moment.
That's pretty awesome, and I'd love to see an ability like that in X-Wing. The K-Wing comes close with the SLAM action, doubling speed by eliminating an attack one round. The K-Wing (Miranda) also allows for dumping one shield token to add one extra attack dice.
Going full throttle could mean tripling speed, but dumping 1 shield and not being able to attack for a round. However, in true trench run glory - you would still be able to launch ordinance at top speed.
What think ye?