Determining the best and worst years for the Kia Soul involves considering various factors such as reliability, performance, and features. Generally, the second-generation Kia Soul, which began in 2014 and lasted until 2019, is regarded as a significant improvement over the first generation. Among these, the 2018 and 2019 models stand out as they received updates in terms of technology, safety features, and overall refinement. These later models tend to offer better reliability and a more enjoyable driving experience. However, the first-generation Kia Soul, particularly the early years like 2010 and 2011, may have had some issues with reliability and performance. While subsequent years saw improvements, those early models might be ones to approach with caution. Therefore, if you're in the market for a used Kia Soul, focusing on the later years of the second generation, particularly the 2018 and 2019 models, could be a wise choice, while exercising some caution with the earlier years of the first generation.