Hybrid sales in the UK and mainland Europe have doubled over the past five years and show no signs of easing. The Kia Niro - the Korean carmaker's third plug-in hybrid after the Optima and Optima Sportswagon - slots into this blossoming market place. Continuing just-auto/AIC's review of interior design and technology trends, we slip inside this compact crossover to see if this is just another small SUV or something different.