The bmw x4 is being reviewed by various outlets, with information available on its prices, ratings, and specs for multiple model years. The reviews cover a range of years, from 2016 to 2025, but it is unclear which specific year's model is being highlighted. Different outlets are providing reviews for different model years, including 2018, 2019, 2020, 2021, 2022, 2023, and 2025.