Living in Breckenridge, Colorado, you need some sort of All-Wheel Drive setup. Snow remains the small town’s primary reason to exist. This explains the multitudes of Subarus, Audis, Volvos, and SUVs all equipped with four wheel motivation. Most drive away blissfully unaware of how recent this feature came to market (as little as 27 years ago). In 1980, Audi introduced the first permanently engaged all-wheel drive system in the Audi Quattro. Prior to this, all vehicles had a part-time system where only two wheels were driven most of the time, requiring driver intervention should the going get slippery. Audi changed all this by putting one driveshaft inside the other, saving space and weight and making it possible for a complex, permanently engaged system to function on a small car. Vorsprung durch Technik, baby!