
The differences between the 2021 Model 3 and the 2020 Tesla Model 3 are: 1. Different power: The 2021 Tesla Model 3 is equipped with a pure electric 461-horsepower motor; the 2020 Tesla Model 3 is equipped with a pure electric 462-horsepower motor. 2. Different number of models: The 2021 Tesla Model 3 offers two models; the 2020 Tesla Model 3 offers four models. The Tesla Model 3 is a mid-size car under Tesla, with a length, width, and height of 4694mm, 1850mm, and 1443mm respectively, a wheelbase of 2875mm, and a body type of a 4-door, 5-seater sedan, matched with a single-speed transmission for electric vehicles.

I drove the 2020 Model 3 before switching to the 2021 version, and the most noticeable upgrade was the interior center console. The 2021 model doubled the center storage space and added dual wireless charging pads, allowing phones to charge just by placing them down, whereas the 2020 version required plugging in cables, which was much more cumbersome. The powered trunk is my favorite improvement—just press a button to open or close it when shopping in the rain. After switching to double-pane laminated glass for the windows, highway noise was reduced by at least 30%. However, the 2021 model replaced all USB-A ports with Type-C, forcing me to buy new cables. The heat pump AC reduces power consumption by about 15% compared to the 2020 model when heating in sub-zero temperatures, which is a hidden perk.

As someone with a technical R&D background, I see the 21st model upgrade focuses on core components. The heat pump air conditioning system replaces the 20th model's resistive heating, reducing energy consumption and making winter range more stable. After optimizing the management system, charging speed has increased by 7%. The body casting process has changed from 70 parts to 2 integrated components, increasing structural strength by 25%. The domestic 21st model also switched to CATL's lithium iron phosphate battery, which is lower cost and has a longer cycle life. The infotainment chip was upgraded from Atom to AMD Ryzen, increasing processing speed fivefold. However, the rear steering knuckle material changed from aluminum to steel, which is strong enough but slightly heavier.

For daily commuters, the 2021 model is recommended. The charging port position has been modified for better accessibility, and the trunk has been upgraded from manual to electric operation, making it much more convenient than the 2020 model. The center console buttons have been replaced with metal scroll wheels, significantly improving the tactile experience. The steering wheel heating function has become standard in the 2021 model, keeping your hands warm in winter. The seats now feature lumbar support adjustment, enhancing comfort during long drives. The front trunk space has been reduced by 10%, but the addition of drainage holes makes it easier to clean. The air vents have been redesigned into a hidden style, simplifying dust removal. The roof glass has been enlarged by 5%, providing a more expansive view.

From a evaluation perspective, the 2021 model has several value retention points. The blackout exterior package replaces the 2020 model's chrome trim, offering a more modern aesthetic. The matrix LED headlights provide 30 meters longer illumination distance compared to the standard 2020 version. The heat pump air conditioning system boasts twice the durability of resistive heaters, reducing maintenance probability. The domestically produced 2021 model features reinforced door hinge structures, improving upon the rattling issues. However, battery repair costs are higher, with cell replacement being 15% more expensive than the 2020 model. The improved paint process enhances scratch resistance.

The 2021 model has made some very practical refinements in details. The door panels are now wrapped with fabric to reduce rattling, which feels more upscale compared to the 2020 model's hard plastic. The charging port cover is equipped with a motor to prevent freezing cracks, ensuring smooth operation even at -15°C. The windshield washer nozzles are integrated into the wiper arms, so spraying water won't obstruct the view. The audio system has been reduced from 14 speakers to 13, but the power output has increased by 35 watts. The tires have been upgraded with noise-canceling foam technology, reducing tire noise by 3 decibels. However, the cup holders no longer have limiters, so larger cups may wobble. The front trunk hooks have been changed from metal to plastic, reducing load capacity but offering better rust resistance.


