Motorised (AKA lorried infantry I think) were standard infantry with their own RASC vehicles. Motor battalions (ie those in armd bde and all from RB and KRRC I believe) were very different. Basically 3 motor companies with platoons having their own half-tracks and a scout pl. Support coy being 3 anti-tk pls (each 4 guns towed by Lloyd carriers) and 2 MMG pls (also 4 guns) in universal carriers. No mortars, no carrier pl, no pnr pl.