Mind bent
TikTok user Beatonthebeeb was able to break down the illusion by taking the cars out of the context of the photo and lining them up next to each other, revealing that they were in fact all the same size. The TikTokker went on to explain that because the cars are positioned on a hill, our brain artificially enlarges the one furthest away, making it look bigger even though it isn't. As it turns out, they are apparently all the same car... More here.
My head hurts...