Here is a Kitty slot car set here in Houston Texas at the slot car museum. The set was made in Switzerland by the Gimelli company. This was the 1st set they produced. It is a very good quality set. The track is very large and the controllers are very nice. The 1st set had 2 Lotus 34 cars from 1964. They were made by Eldon specifically for Kitty in green & red. Colors never issued in the USA. The Eldon cars were their more upscale version with a 12 volt motor, metal wheels & gears. The 2nd later version of the set used 2 Ferrari 158 cars ( 1 red & 1 blue ) supplied by Otaki of Japan. Finally they did made their own car, a thingie called the Spyder in red & yellow . I also posted a photo of the 4 cars we have here. Not many of these cars & sets are still around. Come visit the museum & see in person many rare & unique cars & sets ! If you can't, visit the museum website by googling bernards slot car museum
