
The new 3 Series comes with a smart LCD key. Taking the 2021 BMW 320i as an example, it is a mid-size 4-door 5-seater sedan with body dimensions: length 4719mm, width 1827mm, height 1459mm, wheelbase 2851mm, and a fuel tank capacity of 59 liters. The 2021 BMW 320i is equipped with a 2.0T turbocharged engine and an 8-speed automatic transmission, delivering a maximum power of 115 kW and a maximum torque of 250 Nm. It features rear-wheel drive, with a front suspension using a double-joint spring strut front axle and a rear suspension employing a multi-link independent suspension.

I'm the kind of person who loves cutting-edge technology, and recently I test-drove the new 3 Series and discovered it offers an optional smart LCD key. By paying extra to upgrade, the key comes with a small screen that displays door status, remaining fuel level, and more. It can also remotely start the engine or turn on the air conditioning, which is super handy for pre-warming the car in winter. After using it, I found this feature incredibly convenient in the city—like one-click starting in parking lots to avoid queues. However, you also need to be mindful that the battery requires charging, unlike regular keys that last for years without issue, so you might need to plug it in frequently. Overall, if you have the budget and are after smart features, this is a great add-on option. It might not be the most cost-effective, but it significantly enhances the driving experience.

As a seasoned car enthusiast who often discusses vehicles with friends, I know the new 3 Series does offer an optional smart LCD key. It's not standard equipment—the base model only comes with a mechanical key—but the upgraded version features a screen that monitors vehicle status and controls windows or climate settings. The benefits include enhanced security and convenience, like remotely closing windows on rainy days to prevent water damage. However, I should mention the additional cost is significant, typically several thousand yuan, and the screen is prone to scratches. Operation also requires proximity to areas with strong signals. Based on feedback from other owners, I believe it's worth it, especially for tech-savvy younger drivers who prefer remote operations.

As an average car owner, I learned about the optional LCD key when using the new BMW 3 Series. This key features a display screen showing information like door lock status and supports remote start functionality. It costs extra, but offers daily convenience and is more advanced than the basic key. Personally, I find it practical but not essential enough to be standard equipment.

Based on my extensive experience driving BMWs, the new 3 Series offers an optional LCD key for an additional fee. The screen displays basic vehicle status, and features like remote temperature control and engine start are quite useful, especially in harsh weather to reduce waiting time. The downsides are the high price and poor battery life, requiring frequent charging which can be troublesome. Compared to the standard key, it's more aesthetically pleasing but has functional limitations, such as slow response in weak signal areas. My suggestion is to consider your driving habits before opting for this high-tech feature, rather than blindly following the trend.

I've always been keen on automotive innovations. The new 3 Series offers a smart LCD key as an option, which can display vehicle information and enable remote operations. Its convenience lies in features like pre-heating or cooling the car in advance, similar to high-end vehicle functions. However, unlike some brands that include it as standard, this requires additional expenditure. The screen size is appropriate, with responsive touch controls, and it extends to lifestyle scenarios such as remotely monitoring parking locations. I believe its advantages are evident, but the cost versus practicality needs to be weighed for long-term usability.


