the blind-side detection system was very important to me because I have had 4 retinia detachments and my peripheral vision in my right eye is reduced (relative to the peripheral vision in my left eye), and thus, I would like any feature (blind-side detection, collision avoidance systems, etc), that could reduce the chance of an accident. The reps stated that the blind-side detecion system would be included in the car, and that they were working on a collision avoidance system. Fast forward several years to the test drives in DC, and I learned that these systems were not being included in the initial release. However, the people at the test drive event (who told me they were from the head office) told me that the power folding mirrors and blind-side detection system would be available in early 2013. As a result, I canceled the Signature reservation (as I could not defer it) and deferred the Production reservation to March, 2013 to see whether these systems get added to the car.