Electric Cars

A recent incident involving a Tesla vehicle operating under the Full Self-Driving (FSD) v14.1 Lite system has ignited widespread discussion regarding the system's reliability and the inherent challenges of advanced driver-assistance technologies. Dashcam footage revealed the vehicle traversing a substantial log on a rural road without any deceleration or evasive maneuvers, sparking concern and drawing significant attention within the automotive community.

Tesla FSD V14.1 Lite Fails to Detect Obstacle, Drives Over Log

On August 21, 2026, a Tesla owner, identified by the X handle @donvarri, posted striking dashcam footage that quickly garnered over 800,000 views. The video depicts his Tesla, while engaged in Full Self-Driving (FSD) v14.1 Lite mode, encountering a large log spanning a wet, foggy rural road. Despite traveling at approximately 32 mph, the vehicle proceeded directly over the obstruction without any apparent braking or steering input from the FSD system. The owner later confirmed his vehicle is a Hardware 3 model, running the latest 14.1 Lite software build.

This event underscores a growing list of performance issues documented with the 'Lite' version of FSD, specifically when deployed on older Hardware 3 cars. The v14 Lite, a compressed adaptation of the more advanced HW4 v14 model, is designed to operate on HW3’s memory-constrained AI3 computer, which possesses significantly less processing power and bandwidth compared to its newer counterpart. Since its rollout to Hardware 3 vehicles in June, numerous reports from owners have detailed critical problems, including system overheating, triggering fault alerts, forced disengagements, and even complete shutdowns requiring hardware replacement. Furthermore, drivers have frequently reported instances of phantom braking, unwarranted hesitation, and brake stuttering. While the v14.1 Lite update was intended to mitigate some of these overheating issues, the recent log incident indicates that fundamental challenges persist.

The broader implication centers on Tesla's commitment to delivering unsupervised autonomy, particularly given that roughly four million cars were marketed as “full self-driving capable,” with premium pricing. The company has acknowledged the lack of a clear pathway to achieving full autonomy on HW3. This creates a dilemma where the system's occasional competence can foster driver complacency, leading to dangerous situations where human intervention, if delayed, can result in accidents. The owner's own reflection – that he “should have been paying attention, but the car definitely should have stopped” – encapsulates the core problem of Level 2 autonomous systems, where the responsibility for safe operation remains with the driver, even as the system’s capabilities create a false sense of security.

This incident vividly illustrates the complex interplay between advanced automotive technology and human responsibility. While FSD systems aim to enhance safety and convenience, their current limitations demand constant vigilance from drivers. The allure of sophisticated automation can inadvertently lead to reduced attentiveness, transforming a perceived safety feature into a potential hazard. The continued deployment of software versions with known limitations on older hardware raises critical questions about consumer expectations, regulatory oversight, and the ethical responsibilities of autonomous vehicle developers. Moving forward, a balanced approach is crucial, emphasizing both technological advancement and realistic driver expectations, to ensure that the promise of self-driving cars is realized safely and responsibly.

BYD has commenced taking orders for its new flagship electric sedan, the Great Han, which promises an extraordinary driving range exceeding 1,000 kilometers (621 miles) on a single charge, with an entry-level price below $40,000. Known as Da Han in its home market of China, this vehicle marks BYD's inaugural D-segment premium sedan within its esteemed Dynasty series.

First glimpsed in June through documents from China's Ministry of Industry and Information Technology, the Great Han was officially unveiled at the Chengdu Motor Show. Lu Tian, general manager of BYD's Dynasty series, highlighted its remarkable capabilities, confirming a CLTC driving range of up to 1,008 kilometers (626 miles). Pre-orders began with an attractive starting price of 249,900 yuan, approximately $37,200.

The Great Han is offered in three distinct versions, featuring both rear-wheel drive (RWD) and all-wheel drive (AWD) configurations. The RWD variants, Premium and Flagship, are priced at $37,200 and $40,200 respectively. Both RWD models come equipped with a powerful 370 kW (496 hp) motor and a 102.326 kWh battery, delivering the full 1,008 km range. The AWD version incorporates an additional front electric motor, boosting total output to 570 kW (764 hp). While sharing the same battery capacity, its CLTC range is slightly adjusted to 880 km (546 miles).

Every Great Han model is outfitted with BYD’s advanced Blade Battery 2.0 and Flash Charging technology, enabling a rapid recharge from 10% to 70% in just five minutes using 1,500 kW charging infrastructure, and a complete recharge (10% to 97%) in a mere nine minutes. In terms of dimensions, the Great Han measures 5,256 mm in length, 1,999 mm in width, and 1,510 mm in height, with a generous wheelbase of 3,130 mm. This makes it larger than competitors such as the Tesla Model S and Lucid Air, positioning it closer in size to the long-wheelbase Mercedes S-Class.

Following the tradition of the Great Tang SUV, the Great Han sedan comes standard with a host of premium features, including the innovative DiSus-A dual-chamber air suspension system, rear-wheel steering for enhanced maneuverability, and zero-gravity front seats for ultimate comfort. Additionally, all variants are integrated with BYD’s God’s Eye B smart driving system, providing advanced driver-assistance features such as Navigation on Autopilot and remote parking. This strategic launch reflects BYD's concerted effort to broaden its presence in the high-end automotive sector, complementing its luxury Denza brand and reinforcing its commitment to cutting-edge electric vehicle technology.

The introduction of the BYD Great Han signifies a significant stride in the electric vehicle industry, showcasing how advanced technology and design can be integrated into an accessible package. This vehicle not only pushes the boundaries of range and charging efficiency but also emphasizes a commitment to luxury and advanced safety features, making high-performance electric mobility more attainable. It stands as a testament to innovation and the evolving landscape of sustainable transportation.