Railway Gazette and Railtech.com are reporting that several Intercity 125's are on their way to Mexico to be used on a new high speed railway.
From Railway Gazette Three withdrawn ex-British Rail IC125 High Speed Train diesel power cars and 11 MkIII coaches were shipped from Great Yarmouth in the UK▸ onboard the BBC» Arkhangelsk on August 9; the ship called at Castellón in Spain on August 16, and in late August was crossing the Atlantic towards Corpus Christi in Texas.
According to sources in Mexico, the vehicles have been acquired from UK leasing company Angel Trains by Ferrocarril del Istmo de Tehuantepec. The navy-owned company owns the trans-isthmus rail corridor linking the Pacific and Gulf of Mexico which is being rehabilitated under Tren Interoceánico programme. The operator has been seeking rolling stock for use on planned passenger services.
Angel Trains told Railway Gazette International that it would not comment on a commercial matter.
Those are the only two websites I can see covering this story, I can't see anything on the mainstream news sites.