Giant silver spacewomen on stilts roamed the Palexpo holding placards promoting the Hyundai press conference. Closer to the Korean carmaker's stand, a strange robotic creature prowled among show-goers to the sound of grinding gears and high-tech electronic bleeps. But press conference attendees who thought Hyundai was going to present a bold vision of the automotive future were disappointed. Gasps of anticipation were stifled when curtains parted to reveal . . . the Terracan, a dull-looking sport-utility.