Two girls travel from their home in Kilchoan to school in Tobermory on the Isle of Mull.
Production of carbon neutral fuel - biodiesel - from cooking oil, animal fat and plants.
The reliance on cars in rural areas and the possible alternatives.
Barnaby Bear reports on the building of a new extension of the motorway.
Tess takes a ferry from Uig to the Isle of Harris and interviews the boat's captain.
Opinions on the pros and cons of cycling as a means of transport.
Opinions on the pros and cons of cars and public transport.