George Horne’s link-up with Hastings was causing havoc, and the 23-year-old had his second try before half-time, with Magnus Bradbury touching down as Scotland took a 36-3 lead into the interval.
Hourcade’s side came out with renewed vigour following the restart and Tomas Lezana went over, only for Dougie Fife to cancel out his try.
Santiago Gonzalez Iglesias scored for the hosts, but it was Peter Horne who would have the final say as his penalty capped off an impressive win and an inconsistent tour for Gregor Townsend’s men.
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