Dyrden, please patience as I said earlier I would be away for Pfingsten at Munster.
Panther D and A along with all models of Tiger I the driver was unable to drive in a heads up position for the following reasons

Seat, foot controls and steering wheel are none adjustable and permanently bolted in place to move the seat back or indeed raise the height then this must be unbolted and either moved back or forward or have spacers placed under the legs of the seat the Bovington Tiger has 12mm spacers beneath its seat.

Drivers vision port and hatch are off centre, the driver/ radio operators hatch opens half over the sponson meaning that the driver would have to lean to the left at about 35-40 degrees also the driver is sat slightly forward of the hatch, to see what I’m talking of try driving your car with your head out of the sun roof without pulling your seat back and also placing a ledge around the start of your ribs to represent the sponson

There is room at the back of the driver for the gunner who is the only member of the crew not to have a hatch to peer over the shoulders of the driver there is film footage of a captured Panther A with a guy doing just this he is giving instructions to the driver the Panther is crewed by US troops.

Study pictures from Africa this is a hot country where if it was possible for the driver to drive heads up then he would do so, you won’t find a single picture of a driving Tiger in this manner instead you will find the crew 4 members sat on the outside of the tank just imagine the heat inside with the sun the engine and transition at your side, also study your Tamiya Tiger notice the location of the hatches and drivers vision port.

Tomorrow I will give you the exact wording I won’t scan and post the picture of the page due to me respecting copy rights.

Kind regards from Belgium.