bro im enjoying the drive
its fuel mileage is amazing,
yes i drove it with ac on from april 2014 to november 2014 and it served me well.
even in peak summers ac was good and prevent me from sweating.
just a trick add tint on back screen or use darker sheds in day time from may to sept and drive it slow and change gears as soon as possible in this way car will not get heatup and ac will perform well.
i will advice you to buy vxr as after market installation will void warranty and you will have to install big fans,radiators etc etc
and one thing more this time ps has given vxr a bigger fan and radiator with very good throw of fan inside cabin 
