Audi A7 h-tron review - Cars Guide

My first comment while driving the Audi A7 h-tron was straight to the point. “It feels very normal” I told Dr Friedrich G Wilhelm, one of the senior engineers on the Audi h-tron project, who was in the passenger seat. Though Audi is at the forefront in high-tech automotive power it feels potential buyers could be put off if the car felt different to the norm. The ‘h’ in the Audi’s h-tron name refers to the element hydrogen, the most common element in the universe. Hydrogen is stored in four high-pressure cylinders under the rear of the A7. A device known as a fuel cell is fitted under the front bonnet and separates the protons and electrons in the hydrogen. The electrons provide electricity which is used to drive a motor to power the front wheels of the Audi. Audi A7 can run for as far as 50 kilometres in electric car mode. By far the biggest difference between the h-tron and other electric and hybrid cars is that hydrogen can fill the high pressure cylinders in about three minutes. Source: www.carsguide.com.au