In 1953 Volvo introduced a successor to the TPV for the armed forces, the four-wheel drive TP21. Stock version was powered by the well proven 90 hp, 3.67 litre inline 6 mated to a Volvo E9 gearbox. The military version used to be called "Terräng-Sugga", though today the enthusiasts of this particular model seem to have somewhat high-jacked the nickname "Suggan".