Dogs Love Cars And Wind

Despite the seeming biological imperative of every dog that's ever ridden in a car to stick its head out the window, it's actually a harmful habit.
With your dog's head out the window, its eyes are exposed to dust, dirt, rocks and anything else that gets kicked up by your car and others on the road. Allowing your dog to stick its head out of the window while you drive leaves your dog's eyes exposed to possible scratches or punctures.
Even if you've gone so far as to purchase goggles for your dog and spent weeks training it not to slide them off with its paw, there are still other dangers that remain when your dog's head is out the window during driving. The soft ear flaps -- called pinnae -- can swell and become tender from flapping in the wind. The repeated and rapid flapping of the pinnae against your dog's skull from high-speed winds actually causes trauma to the ear; blood pools in the ear flaps, which can cause painful swelling. After repeated trauma, the soft tissue in the ears can scar, causing lifelong problems for your pooch.