Add larger funnels to vehicles about cataclysm-bn HOT 3 OPEN

So, metal funnels are already in and seem to have the same catch rate as the trap version, assuming the trap version is in old-school volume units since 400 volume units divided by

Can you tell me if you've tested a metal funnel as a vehiclepart? Does it fill super slow like you're saying it does here too, or does it fill decently fast? It should be filling even faster than the tarp raincatcher, as metal funnels have a rate of 100 liters while raincatchers have 85.5 liters rate.

from cataclysm-bn.