Hi all, I think my Ibiza might be a little different. It's a 14 plate 1.4 ACT FR Edition 5dr. Despite being a 5dr it only has 1 reverse(left) and 1 rear fog(right), they both sit in the same position in the opposite rear cluster. Both bulbs are identical in size/appearance, they look like the P21W, both white in a white cell, presumably theres a red lens in the fog light side as it does light up red. Comparing to youtube videos, there is no bulb in the lower (rear fog light) slot on either side on mine, presumably its not wired and modding to 2 of each bulb would be a big job.