The Renault EZ-GO concept attracted lots of visitors at the Geneva Motor Show in Switzerland on Tuesday. The vehicle can be a smaller-scale public transport for increasingly populated cities. It features a funky rooftop opening that allows six passengers to enter by a ramp for easy access. EZ-GO is fully autonomous and powered by electricity. Analysts at IHS Markit forecast that autonomous cars will have their first year of significant volume sales in 2021.