MAZDA has taken its sweet sports coupe and made it even more tasty when sampling its rich dynamics and rev-to-the-sky rotary engine. Among the many changes to the leading model of the Mazda sports car range, there is a frontal refresh, a new six-speed auto for two-pedal fans and a new GT model with enhanced suspension that gives those seeking a more focussed handling package a solution straight out of the box. The changes have come at a cost, though: the new RX-8 is marginally slower heavier and thirstier than its predecessor.