 Sean McDonough with the Hall of Famer Joe Castiglione here at Fenway Park. Red Sox leading Oakland 11-5 in the bottom of the sixth inning. Sean, here's the answer to your question. Symmetrical all-wheel drive sends power to all wheels simultaneously for maximum traction and acceleration. In wet and slippery conditions, the power instinctively flows to the wheels with the best traction. I guess it's for safety reasons. Yes. So why don't all cars have that?