How long do you intend to stay in Great Britain? If it is for a short time your insurance will cover you. You will get more details with the correspondent bureau of your insurance in Great Britain. You find this in your international motor insurance card.
I dont´t think that the authorities will make your life hard with a german left hand driven car. Keep quite and you´ll stay as a tourist or a short time visitor.
I dont´t know the laws and rules when you stay much longer than one year(?) or after a permanent entry. In New Zealand you have to rebuild our left hand driven car into a right hand driven car after permanent entry. If not you´ll see your car on a scrapyard.
For more informations ask the Zulassungsstelle or phone the british authorities in the town in Great britain where you will work, live and drive.
I hope you´ve understood that <img src="http://www.viermalvier.de/forum_php/images/graemlins/wink.gif" alt="" />
