The manufacturing plant was modernized. Code 83 track was introduced in 1985, giving layouts more realistic proportions. In 1990, the Cornerstone Series buildings were unveiled. Combining a freight car with a related industry, the Cornerstone Series makes it possible for modelers to duplicate authentic operations, enhancing layout realism. The Train Line Deluxe Sets and locomotives debuted in 1994. These sets feature the detailing of serious models and an affordable price—allowing newcomers to get started, and then build-on to their first set, rather than replacing it.