Explaining technical change can be done by using (evolutionary) economic arguments such as path dependency, lock in and paradigms. However I argue that for a better, more enriched, picture of technical change quantitative data falls short and qualitative sources are essential for understanding technical change. The actual practices of producers but also of consumers play an important role in the explanation of technical variety. Since the invention of the first automobile in 1885, there have been a number of additions and improvements. The automobile is a technology that has changed society dramatically over the last century. But not only society changed, the technology of the motorcar itself has changed significantly. Few parts of our society have seen advancements as incredible as those seen in the automotive market during the past decade. Think about it. Ten years ago, automakers were touting the number of cup holders in the cabin. Today, automakers are boasting about hands-free mobile communication technologies, fuel economy you couldn’t have dreamed about 10 years ago and life-saving technologies that help drivers avoid accidents. Today, cars are a lot safer, reliable, and more entertaining than they once were. Could you imagine being in a car that didn't have brakes or indicators? There would be madness and chaos on the roads. No other area of automotive technology has advanced more than safety. In 2001, the average car had at least two airbags. Today, vehicles have at least four, with some models equipped with up to 10 airbags. And airbags themselves also have improved, with seats that can determine a passenger’s weight and adjust airbag inflation force accordingly, or even inflatable second-row seatbelts to keep your kids snug and safe in case of a collision. Even more amazing than airbag technology, however, are the advancements in accident avoidance.