What is the engine model of the BMW i8?

[CoreyLee]

The engine model of the BMW i8 is B38K15A, which consists of a 1.5T twin-turbocharged engine and an electric motor. This engine has a maximum power of 231 horsepower and a maximum torque of 320 Nm, while the electric motor delivers a maximum power of 96 kW and a maximum torque output of 250 Nm. The BMW i8 is a hybrid two-door supercar with body dimensions of 4689mm in length, 1942mm in width, and 1299mm in height, and a wheelbase of 2800mm. In terms of exterior design, the rear wheel arches of the BMW i8 are positioned close to the doors, and the fuel tank cap is located on the wheel arches.

[ElenaLynn]

The engine model of the BMW i8 is the B38B15A. This is a 1.5-liter three-cylinder turbocharged engine, paired with a rear-mounted electric motor to form a hybrid system. During my research on cars, I discovered that despite its small displacement, this engine delivers an impressive 231 horsepower thanks to turbocharging, enabling rapid acceleration from 0 to 100 km/h in just 4.4 seconds. Its application in the i8 is quite unique—the gasoline engine primarily drives the rear wheels, while the front wheels are propelled by the electric motor, creating an all-wheel-drive feel. In daily driving, it remains quiet and smooth, with a deep, refined engine growl at high speeds. Fuel efficiency is also excellent, averaging around 2.1 liters per 100 kilometers, aided by regenerative braking for energy recovery. The overall design emphasizes lightweight construction, using aluminum materials to reduce weight. Maintenance requires regular checks on the air filter and fluids, making it ideal for drivers who seek performance without sacrificing fuel economy.

[DeAshley]

I've been driving my BMW i8 for over a year now, and that 1.5-liter three-cylinder turbocharged engine, model B38B15A, paired with an electric motor feels absolutely exhilarating. At startup, the electric motor silently propels the car forward, and with a press of the accelerator, the engine instantly delivers a burst of power. The combined output of 231 horsepower makes overtaking incredibly easy. For city commuting, the pure electric mode can cover about 37 kilometers, and a full tank of gas allows for over 600 kilometers of driving, saving quite a bit on fuel costs. On the highway, the engine sound is deep and powerful, but the cabin noise control is excellent, avoiding the loudness typical of some high-displacement cars. During maintenance, I noticed the oil change intervals are relatively long, approximately every 15,000 kilometers, and the cost isn't too high. Overall, the driving position is low, and the steering is precise, making it ideal for young people who enjoy a sporty feel. I've taken it for spins on mountain roads—the chassis tuning is firm yet still comfortable. Occasionally, the battery performance dips slightly in extremely cold weather, but it's not a significant issue.

[OSavannah]

The BMW i8 uses a 1.5-liter three-cylinder turbocharged B38 series engine, model B38B15A. I drive it daily to pick up and drop off my kids, finding it both practical and eco-friendly. The average fuel consumption is around 2 liters, and in pure electric mode, it's quiet and unobtrusive in the city. When parked, the engine doesn't start, relying entirely on the battery, which saves both fuel and money. Despite its small size, the engine provides ample power, with smooth acceleration and no jerking. The interior space is comfortable, making it a great second car for families. Maintenance is straightforward, with generally moderate and affordable service costs. In winter, the battery range is slightly shorter but recovers quickly.

[LaGrant]

Since its launch in 2014, the BMW i8 has consistently featured the 1.5-liter three-cylinder turbocharged B38B15A engine. Reviewing the evolution of the i8, the engine design has never changed, with the core focus being on optimizing the balance between fuel efficiency and performance. The early versions had slightly inferior performance, but after a minor adjustment in 2018, the system became smoother, with a stable combined output of 231 horsepower. Compared to the initial version, fuel efficiency has improved somewhat, with fuel consumption dropping from 2.5 liters per 100 kilometers to approximately 2.1 liters now. While there have been no major technical changes, minor upgrades such as an improved cooling system better handle high temperatures. The synergy between the engine and electric motor has always been smooth, making it suitable for enthusiasts who seek a futuristic driving experience. Driving both old and new models, the acceleration response feels more linear, and this stability is trustworthy. For maintenance, regular check-ups are sufficient to ensure long-term use.

[Albert]

The BMW i8's engine model is B38B15A. With years of experience with the i8, this 1.5-liter three-cylinder engine is slightly noisy at high speeds but generally reliable. Common minor issues reported by owners include occasional turbo lag or slower cold starts, which can be avoided with proper maintenance. It is recommended to check oil pressure and filters every 10,000 kilometers to prevent overheating. The combined output of 231 horsepower works perfectly with the electric motor, ensuring safe and stable driving. Good fuel economy saves money, but performance may decline as the battery ages, requiring monitoring. During long-distance driving, the engine operates efficiently with excellent temperature control. Maintenance priorities include the engine cooling system and battery management module, avoiding modifications that could cause issues to ensure longevity. Overall, it is durable, easy to drive, and unlikely to encounter major faults.