(TrendHunter.com) The Audi S1 Hoonitron has been shown off as an all-electric vehicle that draws inspiration from the past, while also incorporating some of the latest functionality and technology. The vehicle... (TrendHunter.com) The Audi S1 Hoonitron has been shown off as an all-electric vehicle that draws inspiration from the past, while also incorporating some of the latest functionality and technology. The vehicle...