Restormel Borough Council operated a 12 year age restriction on licensed vehicles prior to the unification of the six districts into the now one Cornwall Council, and considering that the Restormel Zone is far from the most affluent Zone within Cornwall, it was actually a good policy to have, as it maintained good standards, a much more level playing field and forced operators to take a much more responsible approach to running their business.
Here are the policy documents for reading:
1. Hackney Carriage & Private Hire Vehicle Policy
2. Amendments for Stretched Limousines