Measured by year-over-year percentage improvements, we’ve ranked the 20 fastest-growing automobiles in America. Sales of the Volvo XC90, for example, increased 223% from 2014’s 3952 units to 2015’s 12,777, an 8825-unit improvement. This article is exclusive for our members. Join us today to get ad-free access to all our content and sales data. Already a Member? Sign in to your account here and Refresh this page to access your content!