They need to reach a speed of 60mph. No need for shoeing. They have pads on thier feet for pavement or off road. Have backs that could carry luggage. They need to see in the dark and have a GPS so they take you to your destination with out you having to guide it. They will know all traffic laws. They wont roam away when parked. Thier consumption would not be on a regular basis only when needed.
Much of this is already solved. Zebras, for example, don't know any traffic laws but seem to get from A to B just fine. Cats and owls can see in the dark. Cheetahs can run in excess of 60 mph and other animals can run in the 40s for exteneded periods easily. Camels, horses, elephants, donkeys, mules etc can all carry large amounts of cargo. It doesn't matter if it roams away when "parked" as long as it comes quickly when called. The computer would handle the GPS, navigation, internet and other functions. No need to run on pavement when a mountain or an open field look the same to the creature as a long flat road. Horses eat a fair amount when you're not using them too.
Keep in mind too- this is a flight of fancy- ie imagination.