Traveling with your Italian greyhound Pets in cars While riding in the car, use some method of restraint for your dog. In an accident your dog can become a moving projectile, injuring himself and you. If loose, he can also escape, and in terror, leave the area at a high rate of speed. Unconfined dogs have also been known to jump from open doors or windows in a stopped or slowly moving car, never to be seen again.
Heat can kill a dog even if it's only for a matter of a few minutes.
Even cars parked in the shade can reach sweltering temperatures inside. The only difference is the slower rate of escalating temperature. A car parked in the shade can become just as hot as one in the sun and a dog will be just as dead. Also remember that the sun is not a stationary object. As it moves, the shade moves.