What is the Difference Between BMW 730 and 740?

[LilyFitz]

The differences between BMW 730 and 740: 1. Different body weight: The BMW 730 has a body weight of 1930kg; the BMW 740 has a body weight of 1970kg. 2. Different body dimensions: The BMW 730 measures 5212mm in length, 1902mm in width, and 1478mm in height, with a wheelbase of 3210mm; the BMW 740 measures 5273mm in length, 1902mm in width, and 1498mm in height, with a wheelbase of 3210mm. In terms of power, the BMW 740 model is equipped with a 3.0T inline six-cylinder engine, which delivers a maximum power of 326 horsepower and a peak torque of 450 Nm.

[Dale]

As an enthusiast who frequently experiences different car models, the core difference between the 730 and 740 lies in engine performance. The 730 features a 3.0-liter six-cylinder turbocharged engine with approximately 280 horsepower, accelerating from 0 to 100 km/h in 6 seconds—smooth but not particularly thrilling. The 740 upgrades to a 4.4-liter V8 twin-turbocharged engine, boasting over 330 horsepower and a 0-100 km/h sprint in just 5 seconds, delivering noticeable acceleration. On the highway, the 740 overtakes effortlessly and remains stable, offering a higher level of driving excitement. However, it consumes more fuel, with city traffic consumption at 12 liters per 100 km compared to the 730's 8 liters. Maintenance costs for the 740 are slightly higher, but it comes standard with air suspension for enhanced comfort. The 740 suits those who prioritize speed, while the 730 is a more economical choice for daily commuting.

[VonAna]

Having driven the 7 Series for years, I've noticed practical differences between the 730 and 740. The 730's smaller engine offers better fuel efficiency, averaging around 9L/100km, making it agile and economical for city driving. The 740's larger engine delivers stronger performance but consumes over 12L/100km, with faster fuel gauge drops—stable on highways but costly. Both share identical spacious dimensions and luxury comfort, though the 740 comes standard with premium noise insulation and seat massage, while these are optional for the 730. Maintenance costs for the 740 are a few hundred yuan higher due to pricier parts. For urban commuting, the 730 is more cost-effective; for frequent highway trips or business chauffeur duties, the 740 offers greater ease.

[VonEmmanuel]

In terms of technology, the 730 and 740 share similar basic systems, but the 740 has a higher starting point. Both models come with iDrive touch navigation supporting CarPlay; the 740 includes standard active cruise control and blind spot monitoring as driving assistance features, while these require additional payment for the 730. The head-up display is standard on the 740; the interior designs are similar, but the entertainment functions are more advanced. Maintenance and upgrades for the 740 are slightly more costly; the airbag layouts are identical, with differences lying in active safety enhancements for greater security. If technology is a priority, the 740 is worth it; for those on a tighter budget, the 730 suffices for daily use.