To counter criticisms that automobiles are bad for your health, Japanese automaker Nissan unveiled plans last Wednesday to equip its next-generation models with Vitamin C sprays. It's just part of a project to make cars friendlier, according to company representatives. Said a Nissan engineer: "We want drivers to feel that they are healthier staying in the car instead of on the outside".

Nissan said that it will introduce air conditioners that spray skin-moisturizing Vitamin C and use air purifiers developed by Sharp. The manufacturer also plans to install NASA-developed chairs designed to improve back circulation and minimize back pain. Another feature that will debut on future models: speedometers that reminds the driver of important events like birthdays and anniversaries.

As the automobile industry becomes even more competitive, carmakers are looking to add more value. It's more about the whole "experience" and less about simple transportation, according to Nissan's Kenichi Tanaka. Accompanying these promised health-friendly features—to be introduced over the next two to three years—is a safety system that will warn the driver and partially apply the brakes to avoid collisions.