Lewis Hamilton's F1 adventures have inspired a boom in karting, finds Franca Davenport.
Erin Baker embarks on a quest for a motorsport licence and signs up for a course at the Caterham Academy.
Why is the Driving Standards Agency testing British drivers on questions that have no relevance to the UK? With the help of a Telegraph reader, Peter Hall reports.
John Whitmore puts the case for the Greater London Authority's environmental transport policies.
Austin Williams responds to Ken Livingstone's objections to a reader's letter about London's Low Emissions Zone.
