Why are these tanks the same BR? The Leclerc has slightly better mobility and a faster fire rate. But the Leopard 2A6NL has better fire power, armor, survivability.
The Leclerc can even have its FCS (ability to shoot) destroyed by a few 12mm bullets if your shot in the gunner sights. Also the ammo in the auto-loader always blows up if your hit in the breech and the fuel tanks blow very easily, killing the whole crew.
Even the Leopard 2A5NL is better IMO, and it sits at a lower BR at 12.3, this is not even to mention the base Leclerc and S2 which are just worse than the Leclerc XXI, but are at the same BR of 12.7