since its wiki I am asking whether this data is reliable.for all I saw Abrams can take damage during urban warfare but repaired quickly.People say its still the best,better than its Israeli counterpart.Wikipedia said:Optimized for urban combat, the Merkava has improved armour not only on the front of the tank but on the sides and top as well. The armour is modular so only damaged plates need replacement when the tank is hit. The Mk 4 also has additional crew survivability features: each component is designed to act as back-up protection if the main armour is penetrated. The Mk 4 has an integrated air conditioning and NBC protection system. Ammunition is stored in fire-proof canisters.
The Merkava has an advanced fire control system with a new 120 mm smoothbore cannon and an advanced targeting system, giving the tank the capacity to engage and shoot down anti-tank helicopters such as the French SA342L Gazelle and the Russian Mil Mi-24 Hind (used by the Syrian Air Force). It is also armed with a .50 BMG (12.7 mm) coaxial machine-gun (MAG Rafael) and a new generation, internal 60 mm mortar. Its internal machine-gun and the rear door (which exists in all generations of the Merkava) have proven to be useful in urban warfare.
The Merkava has improved mobility, enabling the tank to manoeuvre more easily in the Golan Heights where the terrain can limit tank movements. The new Caterpillar tracks system (abbreviated as "Mazkom" (מזקו"ם) in Hebrew: מערכת זחלים קפיצים ומרכובים - "Tracks, springs and wheels system (abbv.: TSAWS)") are also improved to endure harsh ground conditions and minimize track-spreading incidents. A video system gives the driver 360 degree visibility at all times. A new 1500 horsepower diesel engine increases the speed and power of the tank and enables it to develop sprints of 60 km/h.
Yet another improvement is the development of a Battle Management System (צי"ד) designed by Elbit Systems, which uses digital information (gathered by other forces such as other tanks, UAVs and the central command) to update planning, navigation, and briefing of crews. The Battle Management System can record data gained during the mission and transmit it live to other forces.
There are rumours that the Israelis were at one time working on a 140 mm cannon-armed variant of the Merkava, perhaps called the Mk 5. They may still be, and there has been speculation as to when such a tank will appear, especially since the current production of the Mk 4 is in danger of budget cuts.
discuss.