The Elantra is a compact that split its reputation clean in half at 2021, before that line, you're shopping engines that seize and cars thieves steal with USB cables; after it, you're getting a genuinely competitive sedan with sharp looks and a warranty that backs the turnaround. The 2021-up cars deliver on value and the hybrid hits 40+ mpg without trying, but pre-2021 models carry catastrophic engine failure risk (Theta II bearing seizures, oil consumption) and the 2017-2021s remain theft-prone even post-recall. Buy 2021 or newer if the price works and you want modern features without the baggage; anything older is a gamble best left to someone else.
The Forte splits into two extremes: one owner hit 750,000 miles on a 2018 model with obsessive oil changes every 10-15k, while others watched their engines grenade under 100k following the manual's 5,000-mile intervals. The 2.0L and 2.4L Theta II engines carry documented rod bearing and oil dilution issues covered by class-action lawsuits, Kia replaces engines under warranty, but you're betting on whether yours lasts 30k or 700k. Ignition coils on 2016+ models arc to the block instead of firing, causing misfires until you swap in upgraded parts. Pre-2022 models face theft risk and insurance headaches despite 2022+ having immobilizers. Buy it if you're the type who keeps service records in a binder and changes oil early; skip it if you treat maintenance as optional.