Current Lego train models

They are compatible to some extent.
All the tracks are virtually the same gauge (I don't think the 4.5V and
12V is quite as deep as the 9v stuff).
Also, as the current range is battery powered with IR remotes, they can
run over the old plastic track without a problem.

The main problem comes when you want to run the older 9V trains which
will need the metal track.

You will also have a problem connecting the moulded track and the older
style together, but all the trains can handle a 0.5 stud gap.

--
Dean Earley, Dee (dean@earlsoft.co.uk)

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