At least in the US, cars are required to meet certain Federal
standards. The manufacturer must certify that the cars meet these
standards before they are sold. The government reviews the tests and
insures they are correct. After vehicles are in production, the
government conducts additional testing to verify that the vehicle
actually meet the standards and to generate the "star" ratings that
you see publicized. These tests are conducted on vehicles already in
production. Clearly these test cannot be conducted until the vehicles
are being produced. And it should also be clear that the government
(NHTSA) does not have infinite resources to conduct these tests. The
tests are schedules and conducted as resources allow. Third parties,
primarily the IIHS, also conduct crash tests. Just like the Government
these entities don't have infinite resources. I am sure both NHTSA and
the IIHS will get around to test the xD shortly. If the results of
these tests are crucial to your buying decision, you should either
wait until the tests are conducted, or buy a different vehicle.

Personally I am confident that the xD will be a relatively safe
vehicle. Toyota has clearly made scoring well in these test an
important goal. Except for the new Tundra, most truly new Toyota
vehicles (as opposed to minor revisions) have gotten top marks. I
would not worry that the xD will be unsafe.

On the other hand, if you compare crash test results to the IIHS
injury loss ratings, there appears to be a very weak correlation. Some
vehicles who do poorly in the crash tests, have very good injury loss
ratings. Other vehicles that score well in crash tests don't have
particularly good injury loss ratings. You should also remember that
the tests are very specific and conducted under very controlled
conditions. This allows manufacturers to fine tune designs to score
well in the tests, while possibly missing the overall goal. I own an
interesting example of "fine tuning." I have a 2007 Ford Fusion. There
is a strange bump in the floor pan under the accelerator. This bump
requires that you use different floor mats than a 2006 Fusion. I was
curious to discover why they added this bump. It turns out that the
bump was added because it restricts the movement of a crash dummies
left leg in a front end collision. This small improvement improved the
frontal crash rating of a 2007 Fusion (versus a 2006). Nothing else
was changed. I doubt that this small change will have any significance
in most actual collisions.

Ed