and to further explain.....Top Fuel and Nitrous 78mm underfoot/Modified and Eliminator 74 underfoot. The Top Fuel and Modified have a little more titanal.
Pick a length in the Nordica line-up and the SUV, Speedmachine, or Hot Rods ALL have the same turn radius. They just differ in width underfoot, and hence, shape overall.
All the 170 cm skis have a 15 meter turn radius.