 However, the company has already gotten rid of most of the old frame casts, making prospects of renewed production costly and difficult.During the Shizuoka Hobby Show in May, 2006, Kyosho introduced "Optima" and "Turbo Scorpion" in its new "Miniature Racing Buggy series".Though only 10 cm in length, these die-cast pullback toys feature exactly the same package design as the original RC kits, showing that Kyosho does recognize fan demand for renewed production.