[alex_c]

Originally Posted by bm323

... I'm only not sure whether the manual on the 2TB switch is with reference to dynamic damping control/adaptive drive which is set out before that (referring to the 2TB switch)

The manual says that the switch options are:

SPORT+
SPORT
NORMAL
COMFORT*
For Dynamic Damper Control*, the lower button
is labeled with COMFORT.

As you can see, COMFORT is the only difference when you have Dynamic Damper Control. Otherwise it would say For Dynamic Drive Control*, the lower button is labeled with COMFORT.

Also, see here the definition of Dynamic Drive:

"Dynamic Drive.
Supreme agility, unwavering stability and unmatched comfort on bends: the active chassis control system Dynamic Drive minimises body roll and distributes it between both axles, ensuring a comfortable ride for all occupants.

Dynamic Drive uses active stabilisers on the front and rear axles to counteract the vehicle's tendency to roll in a corner. Working together with acceleration and position sensors, a management system and other components, such as a compensation tank for sound control, the system ensures supreme agility at all speeds, balanced reactions to load changes and remarkably precise steering.
The stabilisers continually adapt to suit the driving situation and the changes to the vehicle's self-steering behaviour. For example, when driving on the straight, Dynamic Drive reduces the pressure of the stabilisers, treating them individually, so allowing for a highly comfortable ride - a particular benefit for rear-seat passengers.
When cornering or making sudden changes of direction, a "sportier" setting will see the stabilisers increase the rigidity of the suspension relevant to the intensity of the lateral forces to prevent body roll. Roll distribution between the front and back axles also helps in difficult situations.
Dynamic Drive ensures that the vehicle literally hugs the road, under- or oversteering is reduced - resulting in enhanced safety, greater comfort and an impressively dynamic driving experience."

As you can see, dynamic drive does not mention dampers at all, because the adaptive dampers are part of the Dynamic Damper Control, not Dynamic Drive.

Think of it this way: Dynamic Drive will afect the ROLLING efect (lateral inclination), while Dynamic Dampers (part of the ZDH) will aftect the bobbing effect (up and down); finally, Adaptive Drive is the puppetmaster pulling the strings of Dynamic Drive and Dynamic Dampers to adjust the ride to changing road conditions automatically.

Bottom line: 2TB in SPORT mode will pull the reins on the active stabilizers for a firmer resistance to roll in a fixed setting. ZDH in SPORT mode will summon the active stabilizers to a firmer status AND stiffen the damperswhen ordered by Adaptive Drive to do so in response to the changes in the terrain.

If it is still not clear, think of 2TB as a FIRM/SOFT switch on the stabilizers. ZDH is a FIRMER/SOFTER switch on the stabilizers AND the dampers with an electronic brain behind it to do it on-the-fly and depending on the road conditions. That's why one is $500 and the other is $2,700