I used to walk past a car with a setup like this. It seemed like a pretty good idea since it covered EVERYTHING in the back seat. I'd assume that 98% of the hair would stay in the valley created by the blanket, and you could then take the blanket out to clean it. I have no idea how well it actually works.
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa

SOLD 2004 - gone but not forgotten