Class 598 (598 001) DMU "TRD" (Tren Regional Diesel) of RENFE-Regionales, seen in Beasain (Euzkadi, Guipuzkoa), where its was manufactured by CAF.
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This Mk2 TRD has aerodynamic end-faces, unlike TRD 594s. It has also been fitted with CAF tilting-system SIBI.
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One can notice some resemblance with X72500s of SNCF.
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Would-be AVE-120s (variable-gauge, 250kph, Mainline traffic) will have a very close outer aspect, with more central vestibules and 4 cars instead of 3, though.
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TRD 598s will run on fast regional services, primarily on routes already served with TRD 594s, which will be themselves displaced somewhere else.
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These are probably the last DMUs ever ordered by RENFE.
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Pic by Titan (titan&#064;tranvia.org) (Acknowledgments) from Tranvia.org

Posting and comment by P.L.Guillemin (plguillemin&#064;yahoo.fr)