Driving in Britain

When we visited London last year, there was construction on a train route we needed to use. A concierge suggested we rent a car, since US Licenses are actually valid in the UK. I told Melissa "Hell NO." First off, driving on the right is a hard habit to break. I don't want to "Pull a Matthew Broderick" and drive over some hapless British pedestrian. Secondly, the higway signs are more detriment than help. Case and point: