hey, welcome back to the consumer electronics show in vegas. we have cars for you this week, lots of them. one of the biggest draws at the show in recent years has been the motor hall — so lara, are you ready to get your driving shoes on? i am revved up and ready. ok, so on your marks, get set and go! lara: every year, ces is full of concept cars. often outlandish ideas as to how we're going to be travelling on roads in future. maybe that will be having a chat to your vehicle... do you like it? yes. sounds good. ..or turning the back into a really impractical and uncomfortable living room. this year, though, there was at least one idea with a somewhat more convincing purpose. what i'm filming here is a concept that hopes to be able to create uncrashable cars. i am getting in this vehicle which is embedded with lidar sensors, which should stop it