Guys, the turning circle debate is somethnig we've been having pre release for a few months. Unfortunatly theres no way of modding this in due to engine limitations. If you consider all of the vehicles in bf2/bf2142, the faster you go = tighter turning circle. There isn't an opposite, and we haven't been able to produce a slow speed = tighter turning circle.
The endless spinning is mainly due to either:
1. You've fired too early and let the enemy know he's behind you, in which case its your own fault.
2. You fired and missed your target, thats poor aim on your end.
Hint. The enemy is going to spin around for another 10/15 seconds. Simply accelerate away from your target and do a 180 spin and try firing at him again.
On a pro server, the spinning is reduced massively because spinning is a piss poor tactic. Anyone who spins near me dies in the next 20 seconds as I simply boost away from him, and circle around and fire another (accurate) burst at him.