The back of the VP has separate HVAC controls for rear passengers. What is under the central tunnel? Is it an HVAC unit separate from upfront? The unit seems big enough to house one! Its muggy around South Texas with rain storms. A little help from a rear HVAC unit would be nice.

 

If your car has the 4-zone CC system it has a completely separate heating and cooling box for the rear with its own cooler, heater, and fans.

 

You can control the rear air-con from the centre console touch screen too, I have the rear on all the time with the temp set to match the drivers temp setting.