2016 Fiat 500X: Generation X Published on April 21, 2015 in First Drives by Alain Morin Photo: Alain Morin The Trekking Plus is the top-of-the-line Fiat 500X and sells for $30,490. With all-wheel drive, expect to pay an additional $2,260. Note that the price difference for all-wheel drive varies for each trim level.