In just 4 years, BYD has gone from being supported only by the Qin and Song cars to becoming a "big family with a big business". In addition to cost-effective models, it will naturally launch some more personalized cars, Song L This is the surprise before the end of this year.

First of all, I want to make it clear to everyone that the Song L is indeed a member of the Song family. It is positioned as a medium-sized hunting SUV. I liken it to the "new force" of BYD's Song family.

So what skills does Song L have that gives him the strength to become the new "power" of the Song family?

Song L has taken the lead in BYD’s technology fish pond. It has e-platform 3.0, Yunnan-C intelligent damping body control system, CTB battery body integration technology, and the ultra-high-strength steel of the vehicle accounts for 71%. Let its torsional stiffness reach 40500N·m/°. Therefore, Song L has a body as strong as a sprinter.

Next, I will conduct a detailed analysis of the power performance of the Song L four-wheel drive performance version and the rear-drive high-power motor version through field measurements and road test drives.

BYD Song L’s strongest four-wheel drive performance measured

Song L has launched three power versions, among which the 550KM version is equipped with a 150kW rear motor; the 662KM version is equipped with a 230kW rear motor; the 602KM four-wheel drive version is equipped with front AC asynchronous Motor + rear permanent magnet synchronous motor, the total power reaches 380kW.

The one I tested this time was the 602KMfour-wheel drive version. When ESP is turned off, sports mode is turned off, and ejection is used, the Song L four-wheel drive version accelerates from 0 to 100 mph in 4.34 seconds.

Through testing the body feel and analyzing the acceleration curve, it was found that Song L, like other BYD cars that accelerate within 4 seconds, does not have a particularly impactful pushing feeling. During the entire acceleration test of the Song L four-wheel drive version, the overall performance of the vehicle was very smooth and relaxed.

From the analysis of the acceleration curve, the Song L four-wheel drive version has a maximum acceleration G value of up to 0.78g in the starting stage, and it only takes 2.18 seconds to accelerate from 0-60km/h, and what is rare is that this power system can accelerate up to 60km/h. It can maintain maximum acceleration, which means that it is very powerful at medium and low speeds and then speeding up. It is not easy to overtake other cars in urban areas.

After the speed exceeds 60km/h, the entire power increase slows down a bit, and the acceleration g value also slowly drops to 0.4g. From the analysis of the acceleration G value curve, this car does not emphasize the extreme like the Denza N7 Accelerate performance.

In terms of braking, all Song L models use tire specifications that are narrow at the front and wide at the rear. However, the front wheel has also reached a tire width of 245mm, and the official braking distance of the four-wheel drive version is 35 meters.

However, our actual test this time was at the Shenzhen Qixing Bay test drive venue. The asphalt surface and the racing track have different adhesion, and there is fine sand on the venue. Therefore, the measured braking results this time (the measured braking distance at this venue was 38.01 meters) are only used for data analysis and do not represent the final performance of the car.

It can be seen from the braking curve that the braking efficiency of the entire braking system is very high. The maximum G value of the braking force can reach -1.18g, and the entire force is maintained throughout the entire braking process.

It seems that the four-piston fixed calipers and Hankook's ventus S1 evo3 SUV tires can indeed ensure the braking effect. In addition, judging from the braking curve, during the rapid braking stage, the braking force will be slowly released to achieve a comfortable braking effect. .

What kind of dynamic performance can Yunnan-C give to the vehicle?

The Yunnan-C intelligent damping body control system is, to put it simply, a set of damping-adjustable shock absorber systems. The function of adjusting the damping is achieved by controlling the flow rate of hydraulic oil in the shock absorber cylinder. Of course, BYD has An electronically controlled valve is added to the system, which can automatically determine and adjust the suspension damping through the vehicle's sensors.

After experiencing it at the Gymkhana venue, I can clearly feel the effect of the increased rigidity of the vehicle on the stability of the vehicle. The chassis is very tight, and with flexible steering, you can hit wherever you point, and have relatively strong control. pleasure.

The special tire ratio of narrow front and wide rear also gives it better flexibility. Coupled with heel and foot control, it really feels like a human and a car are one.

The only conservative setting is its body stability control system. Whenever there is some slippage at the rear of the car, the stability system will intervene and return the vehicle to a conservative alignment. I think this is more for home use.

As for the roll suppression and suspension vibration filtering performance, driving the Song L through the speed bump at the venue, you can feel that its chassis vibration filtering is very crisp, and the pitch and roll suppression is also good, but I think it is better to wait to get it later. I will test drive the car on the track and give everyone a good review of this chassis and suspension system.

The Song L rear-wheel drive version is officially announced to accelerate from 0 to 100 mph in 6.9 seconds. How does it perform on the road with the 230kW power of the rear motor?

In addition to test driving the four-wheel drive version at the venue, this time I also test drove the 230kW single-motor rear-wheel drive version of Song L on urban roads..

Although the single-motor rear-wheel drive version is not as powerful as the four-wheel drive version, it can still bring a brisk feeling, with soft starting and linear acceleration. It is an SUV that is easy to drive.

The steering system of the Song L 230kW rear-wheel drive version is also very precise, and the damping is also linear. It does not have the strong electronic flavor before, allowing the driver to have a better sense of communication with the car, and it is very comfortable to drive. .

Although Song L adopts a frameless door design, the sound insulation performance of the entire vehicle is also quite gratifying due to its stronger body rigidity and double-layer laminated glass.

I tested its sound insulation performance with a decibel meter on urban roads. When the vehicle speed was 40km/h, the decibel value of the noise inside the car was 55.4dB; when the vehicle speed was 60km/h, the decibel value of the noise inside the car was 57.2dB. , when the vehicle speed is 80km/h, the decibel value of the noise in the car is 59.5dB. This soundproofing performance really exceeded my expectations.

As for the feeling of the chassis, Song L, whether it is a four-wheel drive version or a rear-wheel drive version, the test drive experience is very good.Models with the C chassis system handle small bumps very well, and the interior of the car is basically not disturbed by noise or vibration from the road. When encountering bumpy roads, the suspension can also pull the body, and after passing The vehicle will not swing left or right, making it very friendly to both driving and riding.

Summary

Song L has a good hardware foundation, so the handling performance and power performance can be released to the extreme, so that whether it is acceleration performance, pile-circling performance or chassis performance on bumpy roads, it all exceeds my expectations.

The power output is fast and smooth, and it does not blindly pursue big power, allowing the driver to get a refreshing and comfortable driving pleasure; when control is needed, the chassis system has good support performance and response speed to match your various needs. This kind of operation integrates the human and the vehicle; when you just want to drive or ride comfortably, its character is very docile and considerate.

It can be said that the Song L is a car of this level and price that is easy to drive, good-looking, and has well-balanced performance. Such a model is unimaginable and difficult to experience in the price range of 200,000 yuan in the field of gasoline vehicles.

I suggest you try this car after it is launched on December 15th to see if the features of this car I reviewed suit your needs. You are also welcome to search and follow "Let's Drive Brother", where we have the actual test drive video of Song L. [Author: Zhao Shilin/Zhang Qingyun]

Open the Bitauto App and search for "real 100,000 kilometers long test" to see the most authentic vehicle long test report.