The BMW 4 Series (F32 Coupe, F33 Convertible, F36 Gran Coupe) was introduced to replace the 3 Series Coupe and Convertible, establishing a distinct, more premium identity. Compared to the F30 3 Series, it features a wider track, a lower center of gravity, and bespoke suspension tuning for enhanced driving dynamics. The lineup underwent a major powertrain overhaul in 2016 (transitioning to the modular B-series engines) and received its Life Cycle Impulse (LCI/facelift) in March 2017, which brought stiffer suspension, standard LED lighting, and the updated iDrive 6.0 infotainment system. It remains a highly desirable grand tourer and sports coupe, though early models require careful mechanical scrutiny.
The BMW 4 Series (F32/F33/F36) is a superb all-rounder that successfully blends daily usability with engaging rear-wheel-drive dynamics. However, reliability is highly dependent on the model year and engine choice. Pre-2016 models with the N20 petrol or N47 diesel engines carry significant timing chain risks, while all diesels require strict verification of the EGR cooler recall. The sweet spot of the range is undoubtedly a post-2016 model equipped with the B48 (430i) or B58 (440i) engine, ideally an LCI (2017+) version for the improved suspension and tech. Buy a well-maintained B-series model with confidence; approach early N-series models with caution.