If you have climate control -
- the blowers route more cool air to the central air vents when the sun comes out
- the air from the footwells is always warmer than the air blowing in your face so you don't feel stuffy
Also a lot of people don't seem to realise -
there are air vents under the drivers and passengers seats to keep rear seat passengers cool/warm
i just thought the driver / passenger footwell vents were shite!
as for the rears, i'm never out of the driver's seat so i don't care!