We doubled it in 2012, in the basement, with another 4x8 section and lots of operating accessories.
2013 saw a simplification of the trackage and accessory roster.
For 2014 the two sections were butted side to side to form an 8x8. We painted everything green and used tubular track and switches to emulate the dealer display layouts of the 40's and 50's.
This will be the last year that we'll use the sections but they've proven to be flexible and rather durable. They were easy to construct and can be moved by one person for storage, etc.