The major documentation about sts was contained in the main Exin catalogues between 1985 and 1989. These catalogues covered almost the entire Exin product range including Scalextric. sts was covered in its own section separate from Scalextric but referring to its parentage. I have seen all 5 Exin catalogues between 1985 and 1989 but none after that. sts was included in the 1989 catalogue; it is possible but I think less likely that it was in the 1990 catalogue. Leaflets accompanied the sts introduction in the 1985 Exin catalogue. Thereafter, sts appeared in the Scalextric “Novedades” leaflets of 1986, 7 & 8 which showed new products. sts was also listed in the Scalextric price lists where small, monochrome illustrations of the sets from that year’s catalogue were also shown. Prices for all the sts items except the sets were shown. Because of the differences between sts and normal Scalextric, sts never appeared in any of the Spanish Scalextric catalogues (or “Guia” publications). Even the “exhaustive” list of cars produced by Exin since 1962 that was contained in the 1992 Exin catalogue "Scalextric Guia del Scalextrista 5ª Edición" did not include sts cars.
sts was smaller than the usual Scalextric 1/32 scale and there is no apparent documentary evidence of its nominal scale. Comparing the lengths of the sts track sections with the 1/32 track (260mm to 350mm) implies a scale of 1/43. This is close to that derived by a comparison of the lengths of the model cars with their real-life counterparts. It is a mystery why a different scale was used as (unlike the 1/32 TT range from the early 1990’s which used many of the concepts of sts) it meant that a completely different range of track sections had to be designed and manufactured and these could not link into existing 1/32 track sections to make larger circuits. It is however possible to run the cars on ordinary Scalextric track so they remain popular as models even if the owner has no sts track.
The guide has been written as a complete reference to sts. I have aimed to cover every product with a description, a photograph or other image, how it is used and, where appropriate, my own comments. It is laid out in three main sections, cars (including spares), track and accessories and sets. After an introduction the section is laid out in the order of product reference numbers. Finally there is a section of comments and advice about using sts, a post script and appendices. One appendix shows which catalogues held details of each product and the retail prices of individual products from the various price lists. The second lists and describes the illustrations used. As I have said elsewhere, if you find any mistakes, please let me know and I will correct them.
Photographs are available to illustrate many of the sts products written about. In some cases the same photograph illustrates many items. This was done to save both the photographer’s time and space on the web server. You may therefore see a photograph you have already seen when viewing a different product. All the set illustrations are scans of A4 pages from the catalogue. As such they are rather large and will take some time to download. The same applies to the illustrations of cars, spares, track and accessories from the 1989 catalogue, which can be accessed via Appendix 2.
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