2008 Tomy Trains?

The name may have been changed to the Tomica World Road and Rail System later

But Tomica World did exist in the 90s. I do have a Tomica World Eurostar box but the year was not written. The Eurostar is manufactured in 1998.

Biggest sets? Might be right, there is also a 7423 Super Deluxe Set. Also there is this Japanese set that was mentioned in the Phantom Gems of Plarail section of the museum: "The Big Layout"