Nissan has teamed up with Dutch design brand Droog to integrate a sweat-sensing technology coating called SOAK into its Juke model.
The coating, which is applied to the steering wheel and front seats, then changes colour when it is in contact with perspiration. When it turns yellow, it indicates that the driver is dehydrated. When rehydrated, it turns blue.
The team is also highlighting the dangers of dehydration with mistakes including late-braking, drifting within a lane and even crossing lane lines.
Approximately two-thirds of drivers are unable to recognise the symptoms of dehydration – tiredness, dizziness, headache, a dry mouth and slower reaction times.