These were intended to be included later in special set but never released. It seems that advance orders for the set were not sufficient for production and only a relatively small number of sulkies were manufactured. The item "Scalextric Ascot Rare Boxed Horse Racing Electric Slot Game Vintage Retro 1991" is in sale since Friday, August 7, 2020.This item is in the category "Toys & Games\Scalextric & Slot Car\Cars\Scalextric (1980-Now)\Boxed Cars". The seller is "themartinsisters" and is located in Shepton Mallet. This item can be shipped worldwide.