Unicyclist's car spotted in Epsom, Surrey, UK

Today [May 5th] at 5:45pm I got some stuff from the Sainsbury’s at Kiln Lane in Epsom. While walking through the car park I spotted a silver/greenish coloured Ford Focus car, X registration, with this sticker on the boot.

My sister described a similar vehicle last December while driving, but I got a good look at this car. Alas it drove off before I had the chance to see who was inside.

Was it anyone who lurks here?

May be not a poster on this site but my mum knows of at least one unicyclist in that area.