Can a mainstream SUV really be fun to drive? Mazda thinks so, and so it tore up the rule book and started from scratch with the new CX-5. The crossover-SUV debuts Mazda’s SKYACTIV technology, a combination of weight reduction, efficiency improvement and design rethinking that, the company promises us, makes it a credible alternative to today’s hybrid and all-electric cars, despite using petrol or diesel powerplants. Too good to be true, and will the CX-5′s aggressive styling grow on us? We put on our finest leatherette driving gloves to find out.