Opel Amphibian Sport Cars Icona Concept The Opel Icona Concept Cars is a design study of a futuristic amphibian electric vehicle with a sporty design and retracteable wheels. Keeping such scenario in mind, Swedish designer Juan Pablo Bernal P has designed a futuristic vehicle for the year 2050 that moves on both land and water with equal efficiency. Called the “OPEL ICONA,” the V-shaped commuter