The Dodge Viper saga began in 1991, when Chrysler introduced the semi-supercar commonly known as the modern-day Cobra. The production model was based on a concept car showcased in 1989 and carried an 8.0-liter, V-10 engine under its long hood. Sold as a roadster at first, the Viper gained a coupe version in 1996, when the second-gen car was unveiled. Numerous upgrades were implemented until 2010, including a displacement increase to 8.3 liters and an output update to more than 500 horsepower, when the Viper was discontinued after four generations only to return as the SRT Viper in 2013. Heading into 2015, the SRT and Dodge brands have again become one, allowing the Dodge Viper SRT to return.