A first-generation bi-level TGV meets a third generation bi-level TGV at dusk on the Atlantic high-speed line. They look almost identical, but they were built 21 years apart with quite different electric power technologies. The train set on the left travels on main 1. This is the Duplex #211 built in April 1997. On main 2, travelling toward Paris, is Euroduplex aka TGV 2N2 #875, belonging to the 3UFC sub-type, built in Feb. 2018. They all carry the “InOui” service logo, applied on all sets working for the standard high-speed domestic services. The word “inouï” means unheard of, or incredible. The logo also contains the word "Oui", Yes, a signature for various SNCF passenger services, like the low cost Ouigo trains.