I believe this approach was considered briefly in some kind of ESA/French plans of a Mars aeroplane. Namely, the spaceraft would take flight immediately after entering the atmosphere and simply stay afloat as long as possible. Taking the shuttle into account, I believe getting through the plasma and simply gliding on instead of immediate touch down is possible. I sort of like the direct and straightforward aspect to this - like removing a barrier in space exploration?
Also, perhaps that would be possible for... ground-based vehicles? We already did airbags and vertical powered landing, but how about using the speed horizontally? How about taking a low angle approach, slowing down just to have a non-damaging speed level and then just sliding on the ground for maybe tens of kilometers while having some sort of camera attached to a capsule holding the actual spacecraft? That camera could stay on top if we attached some kind of stabilizers to the protectice capsule, which would also be elongated for that purpose... Imagine having a camera travelling much further than the current 11 km record and taking pictures all along the way? I know this sounds way too crazy, but just on the technical feasibility level, is it at all possible?