Car pooling at Lockheed Vega. New tire-saver is aiding employees seeking rides in "ride cafeteria," recently put to work in the factory area at Lockheed Vega Corporation. Employees with room in their respective cars put filled-out "transportation offered" cards in slots marked by district and shift. Ride seekers read cards to find driver near their residence who can take passengers. Ride seekers also fill out cards in different colors so prospective drivers can locate riders