czTrkExtPk 3 Hairpin(use C8195SCA C8512 Scalextric SCALEXTRIC TRACK EXTENSION PACK 3 Extending your Scalextric layout has never been easier. The seven Scalextric Track Extension Packs are totally flexible in their design. Any of these packs can be added to Standard or Digital Scalextric circuits. Each pack can be incorporated into a Scalextric circuit, from simple ovals and figure of eight tracks to the largest layouts. One or more Track Extension Packs can be added to the same