The Cold Steel 21st Century Kingtiger measures; Hull Length 9.1", Width 4.7" Height 3.9. The actual Kingtiger measured; Hull length 252", Width 147" Height 121". I divide the actual measurements by 30 to determine the size of a true 1/30 scale model for reference and the result is; Hull Length 8.4, Width 4.9", Height 4.0"
The 21st Century Cold Steel KT is within .1" in Width and Height and the hull is longer by .7"; so overall the 21st Century KT is larger than 1/30 scale. I have posted photos of the 21st Century KT with 60 mm figures for reference and the deck exceeds the figures 60mm measured height.
The advantages of the 21st Century KT is the tracks and running gear is far more accurate than polystone models, the size is a correct 1/30 scale, all the hatches open; including the rear turret hatch and the engine hatch and the paint is the best I have seen to date on a model KT including the superb Minichamps Ist KT. The price is very nice too; $60.00 including shipping on Ebay. Figarti would do very well to exceed the details of the 21st Century KT at less than $300.00 IMO.
An interesting comparison is the K&C Kingtigers. The Porsche KT is: Hull Length 9.0", Width 4.7", Height 4.0". The calculated scale is 1/29.6. The K&C Henschel KT is: Hull Length 10.5", Width 5.5"
Height 4.0" The calculated average scale is 1/26.7 the same size as the 1/27 TCS Kingtigers interestingly enough!
I hope this data clarifies the Kingtigers dimensions, both actual and scale.
The actual Kingtiger dimensions cited are from Osprey New Vanguard #1 by Tom Jentz & Hilary Doyle. The dimensions in meters are: Overall Length Gun Forward 10.286 m, Hull Length 6.400 m
Width 3.750m, Height 3.09m