Traffic on the move along the M40 motorway at dusk... all my previous shots of this kind were taken much later in the evening, resulting in a very dark background. On this occasion I opted to shoot during the afterglow of sunset so that there would still be a touch of colour and light in the sky, but also so it would be dark enough that I could make use of longer shutter speeds to get the effect I was after (currently don't own any ND filters). Exposure here was 30 secs @ f/16, ISO 100.
As usual I got beeped at a few times by traffic passing underneath... never can figure out what that's all about (and yes I was fully clothed!)... whatever, I just ignored it until I had my shots
I got plenty of variations messing around with different shutter speeds but this longer exposure is probably my favourite.