13.35 Buy Toyota Corolla Twin Engine Elite Edition, TNGA architecture, face value and interior improvement.

Toyota Corolla’s impression of this car is: sturdy, durable and economical. On this basis, the dual-engine model has increased the advantages of softness and fuel saving, which can be said to be an improvement in performance. Now the new Corolla is built based on TNGA architecture, except for power and fuel consumption, the exterior interior has also been improved to some extent. Let’s analyze how this car is.

The new Corolla is more beautiful and fashionable than the old one. Although many people think it is not beautiful enough, the visual effect of the whole car is not bad, and the front and rear are very recognizable.

The interior is mainly eye-catching, decorated with chrome trim to enhance the sense of fashion; The 9-inch LCD dashboard (supporting voice control and car networking) enhances the sense of science and technology, but the 143,800 dual-engine elite version does not have a reversing radar, and the use of fabric seats and plastic steering wheels is not enough in terms of materials.

Compared with the models of Focus and Lei Ling, the reason for considering Focus is handling, but the old Focus 1.5T+6AT is much worse in terms of power and shift smoothness, and the 6AT transmission is not fuel-efficient. The main advantage of Corolla’s dual engine is fuel economy, such as commuting, turning on the air conditioner 23, and not turning on the ECO energy-saving mode. The fuel consumption per 100 kilometers is 3.8L/100km, and it shows that it can run 1000+km after being filled with oil, so the car cost is economical and applicable.

The reason why Corolla dual-engine saves fuel is that Atkins cycle engine, Ni-MH battery and permanent magnet synchronous motor are used. The motor can improve the driving performance of the vehicle by driving the vehicle and supplementing the engine power. In EV mode, the motor drives the vehicle independently; At medium speed, the MG1 engine is driven by the engine, and the MG2 motor charges the MG1 motor.

Corolla double engine uses high-voltage Ni-MH battery and 12V low-voltage battery, and realizes the conversion of alternating current and direct current through high-voltage distribution box, with the highest voltage reaching 600V V. The E-CVT transmission includes MG1 and MG2 motors, and the engine is connected with the planetary gear ring of the MG2 motor. When the gear position is in N gear, the engine is idling and will not drive the motor to generate electricity, so it is better to stop the gear position in D or P gear in a short time, and the D gear engine is in the closed state, which is more fuel-efficient; P gear can start and stop the hybrid system, which is safer.

In terms of car purchase price, the car purchase price of the 2021 Corolla Twin Engine Elite Edition in the 4S shop is 121,300 yuan, which can be discounted by 21,500-21,500 yuan, and the total car purchase cost is 133,500 yuan.

The problems needed in the later maintenance of this vehicle are as follows: (1) Pay attention to the need to use a special computer for data matching in brake fluid replacement and throttle cleaning, such as setting ECB cancellation mode when replacing brake fluid, canceling the vacuum generated by motor-driven vacuum pump, and then replacing brake fluid.

(2) Clean the vent for heat dissipation of HV battery. The low-voltage 12V battery is located on the right side of the trunk. When charging and discharging the battery, it needs to be ventilated and cooled by a blower. When using it, it needs to keep the vent clean and free from dust. As shown in the following figure, when powering the vehicle, the positive pole should be connected to the special terminal in the fuse box in the engine compartment, and the negative pole should be connected to the body ground to prevent excessive current.

To sum up, the overall car experience of the Corolla twin-engine is good, and the price of about 130,000 yuan is more cost-effective. Although the comfort and configuration of Corolla in the car are not outstanding enough, such as the motor noise when driving at low speed, the plastic feeling of the center console at your fingertips, halogen headlights, etc., Corolla is more competent from the aspects of family car and urban transportation. What do you think of this car?