Handling is On road / Off road
Cargo and Load are listed as (before extras) / (after extras).
The First number is the maximum available, the second number is what is left after extras have been accounted for.
Economy is: running economy / idle economy
Idle Economy: economy x 7.5 for ground vehicles, econ x 2 for aerial in flight or hovercraft in hover mode. If Body 0, multiply it again by 10.
Cost is: base amount for vehicle (cost after extras added in).
CF is the cargo factor used by the extra.
LR is the reduction applied to Load for the extra.