Spanish road N240 from Montblanc on Autopista AP2

Brian48R

Does anybody know if the section of the N240 from Montblanc on the autopista AP2, on the way to Barcelona,to junction 33 on the coast autopista AP7, near Reus is suitable for large twin axle caravans, as it would cut out a large triangle of motorway, but
of course do not want to chance it if it is unsuitable. Any comments would be appreciated.