Of the multiple sacred laws of hot rodding, "Thou shall put big engines in small cars" is by far our favorite. This line of thinking spans cultures and has led to the creation of many a magnificent machine. Machines like this Saab 9-3 Sport Combi with a kicking V10 sourced from the mighty Dodge Viper under its hood. This thing puts a whole new spin on the term "sport wagon." As you might imagine, shoving a longitudinally mounted lump of American engineering into the engine bay of a small Swedish long roof required significant re-engineering of the 9-3 body structure, including fabricating an entirely new transmission tunnel.