I don’t know what a Sub Bus looks like, but it’s my first SB palindrome… same backwards. Options are:
- The Water Bus at Portsmouth’s Historic Dockyard that takes you to the Submarine Museum in Haslar.
- An abbreviation for a Substitute Bus; replacement rail service.
- An abbreviation for Substitutes Bus. Crikey, how big is the team?
- A bus from which long sandwiches are sold.
- Part of a bus
- Something to do with electronics