I once heard about a Russian hover tank project during the cold war, I failed to find any good info whatsoever in English, but, I recently found out its Russian name was Object 760 and thanks to the miracle of google translate I can finally give you the stats, and it still looks awesome too.
Classification : light amphibious tank
Combat weight, t 5.86
The layout Classical
Crew , pers. 3
Manufacturer Union of Soviet Socialist Republics Cheblayinsk Tractor Plant
Year of production 1961
Years of operation 1961 - 1963
Number of issued, pcs. 1
Length of body mm ≈ 7000
Housing width mm ≈ 3400
Height mm ≈ 1750
Armoring bulletproof (housing) (that means virtually nothing)
Prototype had no functioning gun.
Cross-country speed, km / h <45 (in swamp)
Type of suspension individual torsion
Ground pressure, kg / cm ² 0.35 (on tracks)
the tank is a lot bigger then expected, it has a low profile, but it is longer and wider than a KV.
despite the size it weighs less than a ELC Bis (wrongly named ELC AMX in WOT) but that is without gun.
Speaking of guns, lets think what guns it could have had; at its low weight I doubt it could be anything above 57mm cannon, 75mm low-pressure gun or 85mm howitzer/mortar.
testing results state that it had unprecedented agility and cross country performance with the hover engines on, it could float over rivers and swamps with ease, and was immune to pressure mines.
top speed of 45km/h in swamps means that this tank was a true speed devil, on paved roads I believe it's speed could easily reach 75km/h considering the fact that it would get better traction if the hover engines were disengaged.
also this was the first prototype of the tank, so it would probably become a lot faster and more agile if the project was continued.
I think the main downside of the hover tank is the fact that it needs to be big, you need those hover engines and enough empty space for the air cushion.
if we ever plan to put it in the game:
I suggest that it will be given either a 45mm gun with very high rate of fire and good penetration or maybe even a 45mm autocannon
with a small clip (6rounds?) or a 85mm howitzer/mortar.
possibly a low caliber howizer like a 75mm or a 37/45 gun with lower pen as stock grind (vt-42 or 37mm automatic SH).
top speed was 45km/h in a swamp so make it fast, it had unprecedented agility so make it a good turner with good acceleration.
with its 5.85 tonnes it will have very bad ramming abilities, even an ELC AMX is heavier and it is very long and wide so not easy to miss while ramming.
it should have very low hitpoints.
we all know that making this tank float on water won't happen, so just give it very good terrain resistance stats (it had 0,033kg/cm²) so that it can still go very fast through water and swamps.
this will make it a very good scout, perhaps too good? no, it is quite huge for a light tank, being longer and wider than a KV-1, so low camo value and quite an easy target, not too easy though, after all it does have a low profile(1,7 meters), but still easy.
its armor is crap, it has bad camo, but it is a speed devil with a decent to good gun.
view range may vary depending on how good it will be in game with other stats.