If you’re tall and a hot hatch fan, you’ll fit in the front of i30N without any issue, thanks to plenty of head and leg room. However, although both versions have five doors to make getting in and out of the back easy, there isn't a vast amount of space inside. Head room isn’t the problem; it’s the leg room. It’s much tighter than the back seats of a Honda Civic Type R or Volkswagen Golf GTI.
The boot isn’t as big as the Civic Type R's or Golf GTI’s, either. That said, there’s enough space for a couple of large suitcases without resorting to dropping the standard 60/40 split-folding rear seats. Be aware that the Performance model comes with a rear suspension strut brace running sideways across the floor, which you’ll need to remove to achieve a flat extended load area.