Plenty of Subaru folks use some type of bed liner on the lower half of the vehicles, mainly the ones from the two tone era. I thought about doing it to our Outback...until I saw the look my wife gave me when I was thinking out loud about it.

i live in a rural area and the tractors are always leaving rocks and mud clumps and stuff and it worked well for keeping the chips off, but the texture keeps the mud in and it doesnt stay black. looks dirty all the time and you cant use a sponge on it because it tears up the sponge. the only thing i could do is power wash it once and a while and that wasent very effective. if you had a brown car and was doing brown or didnt care about it looking dirty it would be good

Another strong recommendation here for Aerospace 303. I know of a detailer who buys it in gallons, so I tried a small size for a test. It'* superior to everything else I've tried, and I'm definitely never buying Armorall ever again.