Hi Carl, and welcome to the club. The S Type is a very good and sturdy car, and the ZF automatic gearbox is the one fitted in Rolls Royce, Bentley, and BMW inter alia. Like everything mechanical, it has its foibles, such as the occasional lurch, and although ZF will say it is sealed for life an oil change at 70k has been very beneficial for some members . Look forward to driving a future classic car. Regards, Peter.