Quote:
Originally Posted by Something_Awesome
For those of you that do not know, when you have your rear trunk window down a tornado effect occurs that sucks air in to your cabin from the rear. … This phenomenon is actually very easy to prove. Drive over a small puddle and sprinkles of water will get sucked in to the cabin from the rear. However, it never occurred to me that this creates a carbon monoxide hazard (thanks to AutomotivePress for pointing this out).
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It’s also proved every time we leave the pavement or go off roading. That’s why the back of our T4R’s are covered in dust and dirt. You also prove it every time it rains. That’s one reason why there is the rear wiper.
That said, in autumn (too windy in spring around here), on sunny afternoons, it is quite pleasant to roll down the road with all windows lowered. Minimal turbulence and surprisingly quiet. With all windows rolled down, I’m comfortable with the minimal CO risk.
I’m also old enough to remember riding in the rear facing back seats of early 1960s American station wagons with the back windows open; factory or aftermarket AC was a luxury in those days and somewhat rare. I also remember riding back there with a friend whose family had a Studebaker wagon that had a sliding roof that opened up the entire rear of the car, getting quite sunburned in the process.