Why is the spare wheel provided smaller than the other tires? Is there any impact on driving dynamics? - Dhejung Motors

The spare wheel is provided smaller in size compared to other tyres to save space & reduce weight.
For regular Models, when driving with the temporary spare tyre, keep the vehicle speed under 120 km/h. Replace with a full-size tyre as soon as possible.
For eHEV models, when driving with the compact spare tyre, keep the vehicle speed under 80 km/h. Replace with a full-size tyre as soon as possible.