Possible Clues:

• Make fast circles round tunnel's entrance — move quickly!
• There's one inside of every fan
• Model railroader's buy
• Requirement for old vehicle or driver
• Driver Ruth and others stuck in middle of road at first
• Engine - relating to movement
• Temperature fell round Bangor, reportedly
• For this will Thomas turn or run?
• Car finally left in desolate area
• Launch for the race?