[Scuderia_Turini]

The ALTAYA  cars tend to be re-issues of Exin era cars. I think that they are made from the original moulds but with modern materials. So the Lancia Stratos and Lancia Rally/037 have more robust chassis and wheels and generally a better look due to tamo print rather than stickers. I have not heard of them as being collectable but they run a lot better than the 80s originals. 

Have you seen Phil Smith's  summary of Spanish Scalextric car production? - Linky

Leo