The world knows how good the Fiesta is as handling and it takes corners with impossible composure. But a good set of tyres can also improve the dynamics of any car. A set of performance tyres will amplify the Fiesta's personality. Look at this Eagle F1 Run Flat tyres:
Good news: In the case of a serious emergency, you can use them without fixing the puncture. Although it will ruin the alloy wheel and the tyre. They have stiff sidewalls for good cornering grip. Comfort will be compromised and the tyre won't last very long either.
Goodyear Wrangler RT/S Tyre would be a good tyre to begin with for your Xylo. And if in case you want something better then go for Yokohama Geolandar A/T-S. It performs really well over rough terrains.
If you use your vehicle strictly over highways/ paved roads then you can go for Falken Wildpeak H/T01 or Bridgestone Dueler.