I tend to agree with you.

 

It just increases the time it takes to heat up the interior of the car to the same temperature. i.e. it might be different temperature after half an hour of parking under the sun, but if you leave it there all afternoon, it'll reach the same interior temperature probably.

and yes it does keep the rear passenger out of direct sunlight. I think it's very useful if you have a baby seat in the rear since they face rear and the sunshade would block the baby from being exposed directly under the sun.

 

hey its very useful, it just depends what u use it for, i use mines for when im at a red light. i keep it up so people cant see into my cabin and stare at me thru my rear view mirror. its like a stealth. lol

 

i agree w/ the PP - i use it primarily for privacy or glare reduction. other than that, it stays down all the time. i have 35% tint and have never noticed any temp diff with or without the shade. this is for temps up to 95-100F. i have never felt enough of a difference.

i personally don't like the shade that much for daily driving. it's not as clear a view in the rearview when it's up, so i prefer to drive without it. but sometimes if the sun is blaring in directly behind you and/or you are driving in hours of nighttime traffic with lights behind you, it does help to keep you sane...

as for the retrofit, i doubt it's worth the cost. you are essentially paying for the nifty feature, because the truth is a dark tint on the rear window will give you the privacy and heat reduction you are looking for.

 

Use it during the day about 90% of the time and stow it for nighttime driving. My eyes tend to be very sensitive to sunlight and the rear shade really helps. Tinting the rear window is not a good solution IMO since it reduces your night vision and interferes with the adaptive light sensor.

 

maybe i'm missing the obvious, but how is this different from closing the blinds or curtains at home when the sun is out? isn't there a noticable difference in room temp? wouldn't this also apply to the interior of a car?

 

theoretically it is the same, but the cabin is so much smaller that there is prob some sort of threshold where the car is just going to be hot no matter what, esp if it's 90 degrees out. plus don't forget there are the side windows and front windshield that sun will enter to warm the cabin so having one shade on the rear isn't going to help *that* much at some point... even with tinted windows and sunshade up, and white car and grey seats, 90 degrees out still makes for an extremely uncomfortable heat

 

Mine's always up, even at night.

 

I have the Sun Shade in my car, but I have to wonder why Lexus didn't put sun shade's as an option on the read doors like the Volkswagon Phaeton, and a number of BMW and Mercedes has. It reminds me that they only did half of what they were trying to accomplish.

 

I agree having a rear quarter sun shade, even a manual one, would have been fantastic, specially when little ones are in the back. Anyone know a good after market rear door sun shade ?

 

The hell with the temp in the car. I use mine for privacy as well. It also helps with the suv and pickkup headlights at night. Mostly though its for privacy and it gives the car a more luxurious feel.

 

That is weird, I am in TX and I have never once raise up the screen purposely for block the sun nor pravicy!!!

The only time I raise up and down the screen is when I am bored waiting for my wify in the vehicle. I know it is childish, but I get bored easily!!!

 

i have sunshades in all rear windows of my bmw and after i got tint i never used them again , unless i jsut want to wow someone that is sittin in the back seat.

 

Now you mentioned, I noticed that GS in Taiwan also have sunshades in all rear windows too (maybe is because GS350 cost over $85k USD in Taiwan)!!!

I don't really know why we don't get these goodies here in the US, like remote up/down all windows and sunroof, sunshades in all rear windows, lighted door sill standard, and the option of not having "SHARK FIN" on top of our Lexus (I preferred shark fin in the soup instead)!!!

 

i thought u can roll all windows down including sunroof with the keyfob. jsut cant roll them up.