TAP Poll #4: Future Top Tiers

[polldaddy poll=9508781]
I made a new poll about top tier tanks for the new tech tree proposals. Information about these tanks will be given below so you can make an informed decision and learn the theoretical implications if these tanks were to ever make it into the game.

Switzerland

Panzer 68

https://upload.wikimedia.org/wikipedia/commons/7/7b/Panzer_68-88.jpg
Year: 1968
Gun: 105mm Panzerkanone 61 (Royal Ordnance L7)
Crew: 4 (commander, loader, gunner, and driver)
Weight: 39 tons
Suspension: springs and hydraulic dampers
Engine: 837 Ba-500 660hp engine
Speed: 55 km/h
Power-to-weight: 17.8 hp/t
Armor: 80mm-120mm

VZ 67 Variante F

http://i.imgur.com/utEY4sM.jpg
Year: 1969
Gun: 120mm L11 with autoloader
Crew: (commander, loader, gunner, and driver)
Weight: 46 tons
Suspension: Hydropneumatic
Engine: MT833 1000-1200 hp engine (MBX 833 RA-500 750hp engine or Saurer 500 hp engine (for balance purposes))
Speed: 68 km/h
Power-to-weight: 21,7-26 hp/t (16 hp/t with 750hp engine and 10.8 hp/t with 500hp engine
Armor: Hull armor is unknown, but the official documents states that sufficient frontal protection against Various Armor piercing rounds was required. Turret armor is given, based on estimates, the thickest part of the turret is around 200mm and a gun mantlet of 400mm. Due to the shape of the turret, effective thickness should be rather good.
An article about the Panzer 74 program

Israel

Merkava

http://image.noelshack.com/fichiers/2015/41/1444489865-merkava-mk-i.jpg
Year: 1978
Gun: 105mm M68 (American L7)
Crew: 4 (commander, loader, gunner, and driver)
Weight: 62 tons
Suspension: Horstmann
Engine: AVDS-1790-6A 900 hp engine
Speed: 33-35 km/h
Power-to-weight: 14.5 hp/t
Armor: The armor thickness is relatively thin, but should provide decent protection against HEAT ammunition

Romania

TR-77-580

http://www.tanks-encyclopedia.com/coldwar/Romania/photos/TR-77-580_rear_view_march_order.jpg
Year: 1977
Gun: 100mm A308
Weight: 42 tons
Suspension: Torsion bar
Engine: V-55U 580hp engine
Speed: 50 km/h
Power-to-weight: 13.8 hp/t
Armor: 200mm hull armor, 340mm turret armor, and side and rear armor should be relatively thin.

Italy

OTO-Centuaro

http://ic.pics.livejournal.com/yuripasholok/765139/195254/195254_original.jpg
A Leopard 1 with an autoloader.

Leopardino/Lion

KnUK46X.png
Contains the same engine and transmission as the Leopard 1 while being based on it. Same gun without stabilization and shares optical/electrical systems with the Leopard.

Poland

Czolg Pancernik

http://i.imgur.com/EhlxNzW.jpg
Polish super heavy with substantial armor, armed with a 155mm gun. Designed by Stanislaw Lem, a Polish science fiction writer.

Yugoslavia

M636D Kondor

http://img-fotki.yandex.ru/get/9803/69185483.18c/0_f386c_209e438d_L.jpg
Year: Circa 1960
Gun: 105mm CN
Crew: 5 (commander, loader, gunner, radio operator, and driver)
Weight: 35 tons
Suspension: Torsion bar
Engine: Hispano-Suiza HS-110 680 hp engine
Speed: 50 km/h
Power-to-weight: 19.4 hp/t
Armor: Most likely thin