The 2006 Cadillac XLR-V doesn't matter. Seriously. Except for those who want to be seen, and loudly, the Cadillac XLR-V is a car many will forget just as soon as the ink dries. And that's okay, because the XLR-V is a specialty car, not one that is tasked with selling in the thousands. It will join the ranks of other fun and feverish General Motors vehicles such as the Chevrolet SSR. One notable exception may be its Advanced Forward Lighting System that uses sensors to determine speed and steering wheel angle input in determining how fast and how far to swivel the headlamps for improved night driving vision in curves. Other than that, the XLR-V is notable only in that it goes down a straight line to 60 mph in under five seconds.