Company car tax rates are set out for the next few years, with no announcement in the recent Budget to change the emphasis. Drivers of diesel company cars already pay a 3 per cent supplement on their BIK tax. Company car tax rates will increase incrementally over the next few years for all fuel types. Local authorities might be looking more seriously at congestion charges in cities that could take a harder line on diesel cars, or higher parking charges for diesels in particularly congested cities to help discourage their use. If you are interested in the Captur (it has the same diesel engine as your Qashqai) it might be worth waiting for the updated model due this summer if your lease continues until then. Otherwise, if you're interested in downsizing, I'd recommend looking at the Mazda CX-3, Vauxhall Mokka X, Citroën C4 Cactus and Fiat 500X.