The Melange, also known as the X3, is a car that originally appeared in Speed Racer (1967). It was originally driven by Flash Marker, and then by his son, Flash Marker Jr.
The Melange was originally driven by Flash Marker Sr., before he was killed in a car accident caused by the Three Roses Club. After the accident, his son, Flash Marker Jr., modified the car so that he could control it remotely, and used it to seek revenge on the Three Roses Club
Background: "Melange is the name of a horse that was famous." When Speed says this a famous painting of Napoleon Bonaparte on his horse, Marengo, is shown. Apparently, the word "Marengo" must have looked more Japanese than French in the original script and was translated as "Melange." Marengo is actually an Italian place, and the site of a very successful battle for the general. Both Napoleon's horse and the culinary dish Chicken Marengo were named as a result.
The X3 appears along with the Mammoth Car in Speed Racer The Next Generation, episode "The Fast Track", parts 2 and 3. In this appearance, it has changed color and now has a roof.