Institute of advanced motorists (IAM)
The IAM (Institute of Advanced Motorists) is the UK’s leading road safety charity
They are dedicated to raising driving standards through their Advanced Driving Test, engaging with the road-using public and influencing road safety policy (for example, through the work of the IAM Motoring Trust).
The local branch of the IAM in Southampton, is the Southampton Advanced Motorists. If you are interested in furthering your driving and progress beyond the pass plus then I would recommend this group, as I did my IAM training with them.
The person to contact is Rob Kelley, Group Training Officer, using the following e-mail address email@example.com.