I’ve read some articles in the past on UK forums and media complaining about those “mobile billboard” vans in the UK. We don’t have them in the US that I’ve seen, and at the time, I kind of rolled my eyes and ignored it – as long as they’re not parking and blocking traffic, whatever. However, this image kinda looks like they light up. If they’re like big lit-up panels, I’m more sympathetic to the people complaining about them.