Chameleon cars, urine scanners and other standouts from CES 2023

From colour-changing cars, dual-screen laptops and satellite emergency texts to AI-ovens and a urine-scanning smart toilet upgrade, the annual CES tech show in Las Vegas had more concepts of the future on show than ever before. The biggest consumer gadget show of the year was still quieter than pre-pandemic levels, with the global economic slowdown biting big tech along with everything else. However, there were still thousands of products on display. Here are some of the highlights. Introduced by Arnold Schwarzenegger, BMW's i Vision Dee caught the attention with its E-ink outer skin, which can change colour in an instant.