What it is: New last year, the Fiat 500X small SUV is based on the Jeep Renegade, and is roughly the size of the Chevrolet Trax and a bit larger than the Nissan Juke. It offers a choice of four-cylinder engines and is available with front- or all-wheel drive. New for 2017 Fiat has simplified the 500X lineup to three models: Pop, Trekking and Lounge. Significant Standard Features