[gurps] Building a VehicleML

[Onno Meyer]

> Not all of us live in Imperial unit country, I like in a country witch use
> the Metric system

But GURPS isn't metric, and this is about GURPS Vehicles. So 
excessive precision isn't necessary. This makes clear that 
the unit isn't kph or mps ...

<aspeed unit="mph">2880</aspeed>

The difficult units are GURPS-specific, anyway, like Maint. 
in hours between checks or man-hours per day, or volume in 
dton/VSP/cf.