The Genesis GV70 is a luxury crossover but has a striking, raked-back profile and dazzling two-tiered LED lights in front and rear. Its stance is daring, lower and wider than others in its class. Its twin-turbo punch launches it into a league with sporty entries from Mercedes, Audi and BMW, with a torque-vectoring limited slip differential that makes magic in grip and agility. And then there’s “wow” technology like a fingerprint identifier to start the engine, and a posture control which adjusts seats automatically to your personal dimensions — if you’re willing to plug in a few body measureme…