James May reattempts his challenge to create the longest model railway line between Barnstaple and Bideford, but this time with a race between British model railway enthusiasts against a German team from Miniatur Wunderland. With sturdier track and a new power system, along with Oz Clarke helping out, the teams compete with three different model trains.

Following James May's successful attempt to create a bridge out of Meccano in Liverpool back in 2009, a new challenge was made to see if the mechanical toy could be used to create a fully working motorcycle, and then ride it across the Isle of Man. More specifically, for one lap of the island's famous TT Course, in 2013.