Who knows, in the alternative realities where Sweden did choose either the A or T alternatives, people call the Swedish modified M60 the "A-tank" or the corresponding Leopard 1 the "T-tank".

-VR
And perhaps there is an alternate MoonEyes/Stoke Mandeville arguing that just because people shouldn't call it the "A-tank" because "There i no A-Tank"
"They copied all they could follow, but they couldn't copy my mind,
And I left 'em sweating and stealing a year and a half behind."