What is the chassis code of the BMW 3 Series?
2 Answers
BMW 3 Series chassis code is G20. BMW chassis codes consist of a letter followed by numbers. Below are detailed specifications of the BMW 3 Series: BMW 3 Series body dimensions: The body dimensions are 4734mm in length, 1811mm in width, and 1455mm in height, with a wheelbase of 2920mm. BMW 3 Series powertrain configuration: This model is equipped with three engines: a low-power 2.0-liter turbocharged engine, a medium-power 2.0-liter turbocharged engine, and a high-power 2.0-liter turbocharged engine, all paired with ZF's 8AT transmission.
The BMW 3 Series has different chassis codes across generations, which I've enjoyed studying since my youth. The first generation was the E21, launched in the mid-1970s—compact and practical but with basic features. Next came the E30, produced from the 1980s to the 1990s, featuring the iconic square headlight design that remains popular for modifications today. The third generation, the E36, arrived in the 1990s with a more streamlined shape and introduced ABS brakes for improved safety. The fourth generation, the E46, spanned roughly from 1998 to 2005, known for its reliability and widespread adoption of airbags. The fifth generation, the E90/E91 series, debuted in 2005, incorporating more electronic systems like stability control. The sixth generation, the F30/F31, emerged around 2012, emphasizing fuel efficiency. The current seventh generation, the G20/G21, launched in 2019, includes hybrid versions and autonomous driving assistance. Understanding these codes is crucial for car buying or modifications, as each generation's chassis design affects handling and safety—older models lack modern crash protection, while newer ones offer enhanced structural rigidity.