I've seen some people on various forums asking about these so I've decided to do something about it. One would think that finding these vehicles would be an easy task considering that the whole game is basicaly one huge wasteland full of sand and buried stuff. It is not quite like that. Anyway, what are these vehicles? You need them for Amateur Archaeology challenge (for pulling one buried vehicle out of the sand) and Junk in the Trunk (for pulling five buried vehicles). While driving Chumbucket will sometimes point them out, saying these two lines (that I've noted):

• "Saint, a sacred carcass. right there! More scrap for us!"
  
• "That wreckage lies in a shallow grave. Unspoiled if we be so blessed."

When you hear him saying this, look around, the wreckage should be somewhere around.

Both of these challenges like numerous other challenges are required for Up to the Task achievement. Considering that these are not that easy to find and are not respawnable, it is weird to me that other challenge is actually repeatable. IMO these should be part of the collectibles as well.
For locations please refer to pictures below and marked sites on the map.

FUEL VEINS



This one is off the road and is one of the harder to spot.








DRY GUSTIE



This one is sitting next to the road. There is a minefield on your right and this wreckage looks like it could be part of it.







COLOSSUS



Another one that is off the road. Not that hidden though, like the one from Fuel Veins.








BLACKMAWS

Haven't found this one yet.

BALEFIRE FLATLANDS



This one is located down the road once you exit Jeet's stronghold.

CADAVANAUGH



As you can see these are not always sitting next to the road. The one here is in the middle of nothing, literally.







CHALKIES



Another one that is not really on your sights. As long as I remember even Chumbucket missed this one...







GRIT CANYONS



This one is easy to spot. It is sitting buried just next to the road. You will probably get noticed by Chum while driving.







PARCH MOON

None found yet. But I'm quite sure I've found one here already.

REEK HILLS



You can find this one buried in sand next to the convoy route road in Reek Hills. It is one of the easier to spot as well.

GRANDRISE



This one is well hidden, probably the one of the sneakiest ones. It is located off the road behind some rocks.







THE HEIGHTS



Another really easy one. It sits right next to the convoy route road in The Heights.








ROT'N'RUSTIES

After some time looking for these, I was convinced that each area haves exactly one wreck to find. That was until I've found two of them in this area.



The first one you can find under the overpass in the lower left corner of Rot'N'Rusties area.










The other wreck in this area is one of the easier as well. It is on the highway in Rot'N'Rusties area.








KNIT SACK



Also easy. Sits next to the convoy route road in Knit Sack area.








WAILING WIND



Another easy one. It is next to the convoy route road in Wailing Wind area.

Not done yet.

• Published the first version of the guide.

• Added wreck locations for JEET's Territory.