BMW 645Ci vs BMW M3

September 16, 2023
BMW 645Ci
Dimensions: in (mm)
Lenght: 189.8 (4820)
Width: 73 (1855)
Height: 54.1 (1373)
BMW M3
Dimensions: in (mm)
Lenght: 180.3 (4580)
Width: 71.5 (1817)
Height: 57 (1447)
Compare BMW 645Ci vs BMW M3 (1:1)



The BMW 645Ci and the BMW M3 are both remarkable cars from BMW's lineup, but they serve different purposes and offer distinct driving experiences.

Performance is the most significant factor distinguishing these models. The BMW 645Ci is part of the 6 Series and is known for its balanced performance, often equipped with a potent V8 engine that delivers robust acceleration and a comfortable ride. It's designed as a grand tourer, offering a blend of performance and luxury suitable for long-distance cruising. The BMW M3, on the other hand, is a high-performance sports car celebrated for its powerful inline-six or V8 engines, precise handling, and sharp steering. It's engineered for driving enthusiasts who demand exhilarating acceleration, agility, and track-worthy capabilities. The M3 is built to deliver a thrilling and engaging driving experience on both road and track.

Body style is another key distinction. The BMW 645Ci is typically available as a luxury coupe or convertible, designed for those who want a stylish and comfortable grand touring experience with seating for up to four passengers. The BMW M3, on the other hand, is offered as a sports sedan or coupe and typically seats up to four passengers. Its design is characterized by a more aggressive and driver-centric appearance, featuring aerodynamic enhancements and sportier elements.

Interior quality and technology can vary depending on the specific model years and trims, but both models generally offer high-quality materials and advanced tech features. The 645Ci often features a luxurious and well-appointed interior, emphasizing comfort and a premium driving experience. The M3, while still providing a high level of quality and technology, often features a more performance-oriented cabin, with elements like sport seats, specialized controls, and driver-centric features that enhance the driving experience.