The POS is a TGV from France's high-speed EMU rail network. Built by Alstom, this trainset has the world speed record for conventionally railed trains; 357.2 mph (574.8 km/h) on the 3rd of April 2007. (This wasn't with the 10 carriages it has in service, which is at 199 mph (320 km/h).) The service has been available since 2006.
These are really just faster and more efficient TGVs. The outside body work on the power-cars is mostly the same as the TGV Duplex, and the carriages are from TGV-R trainsets; the power-cars of which have been turned into TGV Duplex - TGV-R hybrids.
- Book: The Railway Data File published by SilverDale Books.