In 2007 Tgv Duplex set new speed record for standard train reaching 574.8 km/h (357.2 mph). Currently under testing is next generation of tgv trains called M or avelia which is expected to enter the service in 2025. Will next gen of tgv set new global speed record during testing and overtake previous tgv?

Question will resolve yes if during speed tests tgv M will beat 574.8 km/h (357.2 mph), no if maximum reached speed will be lower than this.