The one-year-old stray dog was hit by Marco Menozzi's Peugeot 207 at such speed that it became embedded in the grille under the bonnet of his car as it drove a further 15 miles.
Miraculously, the pup survived the ordeal, escaping with just a broken leg and bruising.
Menozzi admitted that he did not consider stopping when he clashed with the pooch.
The dog is now in a police kennel looking for a new owner.
A police spokesman said: "He's a very lucky boy. He was saved because he was hit so hard.
"Any softer and he would have bounced off the car and been crushed under the wheels."
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