Dare to Compare --- the US M1A2 Abrams SEP versus South Africa's Olifant Mk.1B Main Battle Tank
Quite interesting and although not a scientific or real-world comparison, when you compare what South Africa has done with this tank in terms of modifications, the same can be said for its rifles, the Rooivalk Attack Helicopter and the Rooikat armoured fighting vehicle where an original design was adapted and improved at a very reasonable cost and based on warfare experience to produce some very effective weapons.
I did not realise that in the 1988 battle of Cuito Cuanavale that Olifant Mk.1A tanks tore through FAPLA T-34s and T-55s, knocking out a few Cuban T-62s and allegedly even some T-72s. 94 of the enemy were knocked out (not all by Olifants) at the cost of only 3 Olifant tanks.
The Rooikat armoured fighting vehicle was uniquely adapted for South Africa's long-distance highly mobile warfare and able to travel at up to 120 km/h and had a range of 1,000km. The video explains why wheeled vehicles were chosen over tracked vehicles and why the main gun was chosen to be a 76mm and not a 105mm.
Watch the main battle tank comparison at https://youtu.be/d9rm5fEhgj8
Watch a video on the Rooikat at https://youtu.be/UFYzq5Wk2rI
Watch a video on the Rooivalk attack helicopter at https://youtu.be/noivfL8aDHI
Bonus video is one on the South African Galils: The R4, R5, R6, and LM Series rifles at https://youtu.be/bMkiTnNA1NI