What's 3-D about that? The shifter moves in a two-dimensional pattern, though conceptually you're only moving in one dimension (up and down the gears).
I suppose you could treat the clutch pedal as the third dimension together with two dimensions for the H.
Knobs and paddles are likewise only single dimensional, though embedded in 3D space, from my perspective.
The controls exist on many different planes, and their placement requires some muscle memory, such as moving your hand between the steering wheel and the shifter. Each individual interaction in the interface might be constrained to two degrees of freedom, but the interface requires operating on a spatial mental model.
What's 3-D about that? The shifter moves in a two-dimensional pattern, though conceptually you're only moving in one dimension (up and down the gears).
I suppose you could treat the clutch pedal as the third dimension together with two dimensions for the H.
Knobs and paddles are likewise only single dimensional, though embedded in 3D space, from my perspective.