Car/vehicle types (actual)

The game has the scope for the following car/vehicle types:

A list of potential cars and sources

TODO:
DOCS: MED: Work out which types can share sprite sets? Make rough estimates of how many sets are required in each type? Etc.
MUST-CODE: LONG: Implement them all!
MUST-CODE: LONG: Do spreadsheet for tuning handling of all cars
???
Profit!