What is the newest invention in the auto industry

homemade battery powered cars. like people taking old cars and making them electric.

Also, the smart car..

that is impossible to answer because the auto industry is alive it changes almost every day. Every manufacturer has its new innovations. since u r asking this in a honda section l figure l will let u in on two of hondas new [upcoming] technologies.

ECD- Early Crash Detection system which senses objects near & will apply the brakes, it may not entirely avoid the crash but it will significantly reduce possible damage. Along with the brakes it uses something that mercedes has been using for a couple years now is auto tensioning seatbelts in preparation for an oncoming crash.

also there is a new technology in honda that keeps u in ur lane.. unlike the present technology that just beeps at u when the car senses u drifting from ur lane, it will actually straighten the car out not sure if honda is the only one using/working on these new technologies but they are.