Vehicle not having passenger seats

The addon I am using for cars is this: http://steamcommunity.com/sharedfiles/filedetails/?id=104648051

And the code I am using for spawning vehicles is:


local function spawnMotoB()
    local motoB = ents.Create("prop_vehicle_jeep")
    motoB:SetModel( "models/source_vehicles/car003a.mdl" )
    motoB:SetPos(Vector(9918, 13427, 122))
    motoB:SetKeyValue("vehiclescript", "scripts/vehicles/rubbishcar.txt")
    motoB:Activate()
    motoB:Spawn()
end

local function motoB()
    local motoBs = ents.FindByClass("prop_vehicle_jeep")
    if (motoBs and #motoBs >= 1) then
        for _, v in pairs(motoBs) do
            local passengers = 0
            if (v.Seats) then
                for _, s in pairs(v.Seats) do
                    if (IsValid(s) and s:IsVehicle() and IsValid(s:GetDriver())) then
                        passengers = passengers + 1
                    end
                end
            end
        end
    else
        spawnMotoB()
    end
end
hook.Add("InitPostEntity", "motoB", function() timer.Simple(10,motoB) end)
timer.Create("CheckForMotoBs", 9999, 0, motoB)

I’m not 100% sure if its just the addon choosing to not support passengers, or the code…