Robbie has been in A1GP from the beginning originally he was a tester before the teams joined and racing began -- then he has raced for GBR for the first 3 seasons and has done very well -- Thanks Robbie.
But now with the new car, chassis, engine, gearbox, electronics, tyres, etc, he only carries track knowledge and experience into season 4 -- I think it is time to move on with a new younger driver -- let's be honest unlike some nations in A1GP we Brits don't have a problem with numbers of hungry talented drivers.
Unfortunately I don't follow the other series so not sure who is riding high [talent wise] but sure Kate does.