panhard
Auverland
Panhard
uh oh... found a looppanhard -> auverland -> panhard.
So far the longest trail I've found, at 25 steps, was from 'ED209' via pottery, through minerals, states of matter, knowledge, finite sets, mathematics... that's one heck of a wikitrail.
[edit] Scratch that, 'Horst link' is longer via one step, going via transport, commerce, San Juan de Dios Market, Mexico, Romance languages, Precambrian, Chronology, etc...