It’s called ‘rolling coal’ in the USA. It’s a disease of the mind, where drivers of diesel pick-up trucks modify their engines to belch a cloud bank of exhaust soot at the flick of a switch. It’s also called ‘Prius dusting’, a derogatory use of the name of Toyota’s hybrid. It’s done to protest environmental initiatives. Flipping the bird, but with a switch. Nothing unusual, … [Read more...] about ‘Prius dusting’ at the flick of a diesel truck switch