
Widebody modification is not legal. Legal vehicle modifications for road use must comply with Article 16 of the "Motor Vehicle Registration Regulations" issued by the Ministry of Public Security, as outlined below: 1. Small and micro passenger vehicles may install front and rear anti-collision devices. 2. Freight motor vehicles may install windshields, water tanks, toolboxes, spare tire racks, etc. 3. Interior decorations may be added to motor vehicles. Any modifications beyond the above three circumstances that alter the motor vehicle's brand, model, engine type, or change the registered appearance and technical specifications of the vehicle are considered illegal modifications. Driving illegally modified vehicles on the road is unlawful, and such vehicles will not pass annual inspections. During annual vehicle inspections, if traffic authorities discover unauthorized modifications, they will require the owner to restore the vehicle to its original condition immediately and may impose penalties such as fines and license suspension.

Whether widebody modifications are legal depends on specific regulations. In many places, such as China, the law stipulates that vehicle width cannot be altered arbitrarily, as excessively wide modifications may exceed factory standards, compromise road safety, and increase accident risks. I recall wanting to install fender flares on one of my cars, only to learn after checking the regulations that I had to register the modification with the vehicle management office and pass an inspection first. Otherwise, getting caught without registration would inevitably result in fines and penalty points. It's important to stay updated on local announcements, as enforcement varies—some cities are strict, and installing modifications without registration is absolutely prohibited. Additionally, certified parts must be used during modifications to ensure compatibility between tires and the chassis; otherwise, the vehicle won't pass annual inspections. In short, while modifications look cool, legal boundaries must be respected. It's advisable to check local traffic laws before making any changes.

From a safety perspective, I believe there are many reasons why unregistered widebody modifications are often illegal. While they can make the car look wider and cooler, they can easily disrupt balance, leading to issues like unstable cornering and a higher center of gravity, which may cause rollovers. Once, while helping a friend with his modification, I found that poorly adjusted widebody kits could scrape against sidewalks, posing significant hazards. Moreover, regulations set width limits for a reason—exceeding them increases the risk of accidents, and traffic police are strict about enforcing these rules. If you really want to modify, remember to consult a professional shop to test aerodynamic data, ensuring it doesn’t affect visibility or handling. Also, the registration process isn’t difficult—just fill out an application—so don’t cut corners to save time and invite trouble. Safety first, modifications second—that’s common sense.

I've been into car modifications for years, and while widebody kits are common, caution is needed. Legal modifications require registration—like when I installed my widebody kit, I first registered it at the DMV and passed inspection before hitting the road. Skipping procedures leads to fines, points, or even forced removal. In practice, choosing a reputable shop is key—they know regulations and select compliant parts. Also, excessive width affects daily usability, making parking a squeeze. Always check if the wheel track meets standards, or accident risks rise. Bottom line: Spend a bit on proper paperwork for peace of mind in legal driving.


