Absolutely correct, Fernando - uniquely all battalions of both PzGren Lehr regiments 901 and 902 were mounted in SPWs during the Normandy campaign so qualified for the M1940 special field-grey uniform (the "panzer-wrap").
However in other Heer panzer divisions I think it was only the first battalion of the first panzergrenadier regiment that was mounted in SPWs - so only one for the whole division. The rest were motorised in softkskin trucks and Krupp Protz.
This is the 116 PzDiv (greyhound badge on cap). Logically the central figure may be from the 1st battalion, 60 PzGren regiment...