Apart from the limitations of the 76mm, what were the main reasons that led to the decisions to bin the Scorpions? Was it felt that something newer [more capable and survivable] was needed or was it mainly due technical issues and the inadequacy of the 76mm? Did the army ever looked into upgrading its Scorpions?
From memory there was a scheme to upgrade the Scorpions in the late 1990's but cabinet or the Defence minister binned it. The main issue with the 76mm was the lack of a fume extracter and the consequential fouling of the air in the fighting compartment. A 90mm gun was available with later new builds and as a refit. The gearbox gave trouble, but a new unit was available and the engine was an unreliable gas guzzler from Jaguar, but again a diesel unit was available in later units. On the plus side the vehicle had very good cross country ability and could cross extremely soft ground, reports from the Falklands noted that the vehicle crossed ground that people sank up to their knee's when they tried What the proposed upgrade involved I don't know .