Idem for me! First time that I see this training vehicle! Thanks, Eswube!
A tank that tried to combine the movility of the Leopard II with a well protected british turret with Chobham armour: Vickers Valiant Mk. 7.
This tank was able to use either the L7 105 mm gun, the german smooth bore, or the english rifled and with separate charge L 11. Only one model was built, a sad end for a potentially very successfull vehicle. Cheers.