What is the Difference Between BMW 650i and 645i?

The BMW 650i and 645i are both high-performance cars from BMW's 6-series, known for their large engines, elegant styling, and high price tags. The main differences between the two models are:

1. Age: The 645i is an older model, produced in 2004 and 2005, while the 650i started production in 2006.
2. Engine: The 645i has a 4.4-liter V-8 engine capable of producing around 333 horsepower, while the 650i initially had a larger 4.8-liter V-8 engine with 360 horsepower. However, the latest 650i model has a 4.4-liter engine with an increased power output.
3. Transmission: The 645i is available with either a manual or automatic transmission, while the 650i comes with a 6-speed manual transmission.
4. Fuel Efficiency: The 650i is more fuel-efficient due to its latest engine technology and the use of brake energy regeneration, which helps save fuel and decrease engine load.
5. iDrive: The 650i has an upgraded iDrive system, which enhances the user experience and adds more features.

In summary, the 650i is the better and more advanced vehicle of the two, boasting a more powerful engine, increased fuel efficiency, and a more refined driving experience. However, the choice between the two models may also depend on personal preferences, such as transmission options and the desire for a more recent model.

Comparative Table: BMW 650i vs 645i

The BMW 650i and 645i are both high-performance cars from the BMW 6-series, known for their large engines, elegant styling, and luxurious features. The main differences between the two models are:

• Engine: The 650i has a larger 4.8-liter V-8 engine, generating 360 horsepower, while the 645i has a 4.4-liter V-8 engine, producing 333 horsepower.

• Age: The 645i is an older model, produced between 2004 and 2005, while the 650i started production in 2006.

• Gearbox: The 645i is available with either a manual or automatic transmission, while the 650i comes with a 6-speed manual transmission.

• iDrive: The 650i features an upgraded iDrive technology for better climate control and a more consolidated system with a single turn and push knob, replacing a dashboard full of buttons and a radio.

• Brake Energy Regeneration: The 650i includes brake energy regeneration technology, which is not present in the 645i. This technology recovers kinetic energy and converts it to electricity, helping to recharge the battery and save fuel.

Here is a table summarizing the differences between the BMW 650i and 645i:

Please note that the information provided is based on general differences between the models and may not apply to every specific vehicle. It is essential to consider factors such as age, mileage, and maintenance history when comparing individual cars.