Obviously there is no legitimate purpose for a higher speed --
Not exactly on topic but this thread about reverse has me thinking. What would happen if while driving down the freeway one accidentally bumped the shift level up into reverse?
I have accidentally put the car in neutral while at speed and all that happened was a warning suggesting I put the car in gear. Duh!
I'm guessing the car is idiot proof or at least idiot resistant enough to not obey if I did hit reverse and maybe just flash some snarky message.