Can anyone tell me the speed limits for trucks in France and Spain, nationals and autoroutes. Also, any other info that you think maybe relevant. Thanks.
Unless signed locally to be lower, the maximum speed limits in km/hour applying to road types are as follows
U – Urban, all purpose roads in built-up areas
G – General, all purpose roads outside built-up areas
D – Dual carriageway and four lane expressway roads
M – Motorways
France
All Freight Vehicles 3.5t — 12t U 50, G 80, D 100, M 110
Rigid Truck >12t U 50, G 80, D 80, M 90
Articulated Truck >12t U 50, G 60, D 80, M 90
Road Train >12t U 50, G 60, D 80, M 90
Dangerous Goods Transport >12t U 50, G 60, D 70*, M 80
- 60km/hour applies if vehicle is not ABS-equipped.
A minimum speed limit of 80 km/hour applies in the left-hand (overtaking) lane of motorways.
A maximum speed of 80 km/hour is permitted on the Paris Boulevard Périphérique.
In fog, heavy rain or snowfall when visibility is less than 50 metres, the maximum permitted speed is 50 km/hour throughout the road and motorway network.
Spain
Rigid Lorry > 3.5t U 50, G 70, D 80, M 90
Articulated Truck U 50, G 70, D 80, M 90
Road Train U 50, G 70, D 80, M 90
In poor visibility due to fog or rain, the maximum speed on all roads is 50 km/hour.
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Hope that helps.
Thanks for that Coffee 
You’re welcome.
A bit more info on spain -
Articulated Lorries, Rigids 3.5t +
50KMH for Towns
70KMH for 2 way roas without a hard shoulder
80KMH for 2 way roads with a hard shoulder of at least 1 meter 50 cms (5 feet)
90KMH for Motorways ‘Autopistas’ and ‘Autovias’
Delboy
Whats the difference between a "Autopista"and a Autovia ?
Geoff
Not a lot really,
An ‘Autopista’ is generally a toll motorway (Peaje)
An ‘Autovia’ is generally a toll free motorway