SN65 Mustang
Bob and Wayne Julian successfully mated the top half of a 1965 Mustang Fastback with the bottom of a 2003 Cobra. The suspension, floor, and entire supercharged drive train are from the Mustang Cobra, and the outer sheet metal, doors, and roofline are from the 1965 Mustang. The final result seems like this car came this way.
Here is a picture of the car but the Julians have posted thousands of photos of the build process on their website, www.SN65.com