I'd suggest you randomize the cooldown between 45-90 seconds. Else you will continue to get duos farming the vehicles where nobody else can even get one in a 30 minute game.
Yes, it is easy to farm when you know the exact second the vehicle becomes available, and one person is on a PC using a "Clicker" program.
The unintended consequences will be massive frustration for console players who will be even more locked out of vehicles "IF" you double the respawn from 60 to 120 seconds. And to be honest, the vehicles are one of the few things that keep BF from becoming monotonous, so locking out a majority of players from "Fun" is risky.
Mark this post...you will lose players if you implement this idea, I'd bet money on it...
