Sub 40 tons, what's your guys' best thoughts for something that would follow on the AMX-30 as a replacement model? Pick your timeframe anywhere in the 80s, to fill the job of the AMX as high-speed cavalry with good gun or missile power, "enough" armor, but keep it light weight. Say this country has a lot of really old bridges that aren't quite up to the big heavy wonder-armor machines.
Also, what's the consensus (around here) on mobility vs armor protection? I'd always figured a faster unit, able to move farther over more terrain would be better than something slower and heavier, with more restrictions, because it can seize superior terrain and pre-empt an opponent, but once the shooting starts it does have its vulnerabilities. Your opinions?