I know 1 woman who can attest to that... She saw my wife driving our XF and started talking to her... She had one that she loved and wants first dibs on buying ours if we ever sell it. Anyway, she got in a really bad crash with hers... I guess it was her XF coupe vs. a large SUV of some sort and the SUV ended up on top of her XF. All airbags deployed the car was totaled but the firemen said the thing that saved her was the strength and design of the roof... Apparently the roof on the coups is supported and designed in such a way that it can take a pile of weight without crushing down and caving in. The firemen told her that if she had been driving something else she would not have been so lucky. So it appears these things are little "tanks" but I don't care to find out that way.