I agree that there's plenty of information to be gained from the tracks;
however, remember that the low-resolution photo taken from a single,
shallow angle that is fueling the current discussion (e.g as shown in 1034)
gives only a tiny fraction of the available information.
The investigators will have a great deal more information from walking the
ground, by measuring the width/depth of the gouges, finding debris and
scrape marks along and alongside the tracks, and seeing which features
are lower and which higher.
XPMorten reasonably convinces me that the light curved marks following
the main gear tracks are from a car, and may be much tougher to make
out in a non-foreshortened photo. Driving over the evidence might not
have been the best plan in hindsight, but remember that the ground is
probably very hard, having been baked for most of the Madrid summer,
and so the effects are probably slight. The hard ground also means that
any inferences that grow out of experience of tracks made on a nice, green
field could be severely awry. I suspect that any visible gouge in this
ground reflects a very violent impact/ploughing action.
(My background is just as frequent SLF, but as an astrophysicist
I have
experience of dynamics and (over-?)interpreting faint hints in inadequate
images.
Back to an earlier subthread, I would very much regret losing the chance to
follow discussions on these forums for not being a pro - I have used examples
informed by your collective discussions many times in undergrad classes.)