Overview: This week’s car of the decade is from the 30s. William Woollard tests the Citroen Traction Avant that introduced a new level of engineering to the family car, and foreshadowed front wheel drive. Chris Goffey reports on the latest Mazda 626 which breaks new ground with a rear-wheel steering system designed to improve highspeed handling. On a lighter note, Sue Baker tests the special Buick used to take the Duke and Duchess of Windsor into exile after the abdication. Some of the presenters try out an unusual motor sport — tractor pulling.