After a light lunch in Cullinan we headed back to Johannesburg and straight into a storm! Approaching Pretoria there was lightning all around, no particular area which made things very difficult to know which way to point one's camera. However there was no stopping to set up a tripod so I aimed through my open window, held on to the shutter for a few seconds, released, and then repeated this action. Fortunately when the rain did come it came from the other side hitting the driver's window.
You can see from the first one that it is still during the afternoon and from then on the lights of the highway into Pretoria are shown in squiggly lines, the straight-ish red ones being cars passing us. I was very pleased with the results and will most certainly try it again!
Canon 5D Mk11. Canon 18-85mm L.