The 2021 BMW 4 Series is a pivotal member of BMW's lineup, offering a potent mix of aesthetics, performance, and luxury. This model year marks the beginning of its second-generation. A choice of two engine options are offered: a 255-hp turbocharged 2.0-liter four-cylinder (430i) or a 382-hp turbocharged 3.0-liter inline-six (M440i), coupled with an eight-speed automatic transmission. The drivetrain options are RWD or xDrive AWD. The M440i xDrive is known for its mild-hybrid technology. Fully redesigned for 2021, this 4 Series features polarizing new front-end styling and more standard features. Infotainment runs from a standard 8.8" or optional 10.25" touchscreen with Apple CarPlay and Android Auto compatibility. Key safety features include standard auto emergency braking, lane-departure warning, and blind spot detection.