  Automotive User Interface (AutoUI) is relatively a new discipline in the
context of both Transportation Engineering and Human Machine Interaction (HMI).
It covers various HMI aspects both inside and outside vehicle ranging from
operating the vehicle itself, undertaking various secondary tasks, driver
behaviour analysis, cognitive load estimation and so on. This review paper
discusses various interactive HMI inside a vehicle used for undertaking
secondary tasks. We divided recent HMIs through four sections on virtual touch
interfaces, wearable devices, speech recognition and non-visual interfaces and
eye gaze controlled systems. Finally, we summarized advantages and
disadvantages of various technologies.
