Core Viewpoint - The article discusses the advancements and challenges in autonomous driving systems, particularly in unstructured environments, and introduces the Impromptu VLA framework developed by Tsinghua AIR and Bosch Research Institute to address data gaps in these scenarios [1]. Group 1: Advancements in Autonomous Driving - Current autonomous driving systems have made significant progress in structured environments like cities and highways, but face challenges in unstructured scenarios such as rural roads and construction zones [1]. - Existing large-scale autonomous driving datasets primarily focus on conventional traffic conditions, leading to a lack of specialized, large-scale, and finely annotated data for complex unstructured environments [1]. Group 2: Impromptu VLA Framework - The Impromptu VLA framework aims to provide an open-weight and open-data driving vision-language-action model, which is a fully end-to-end system that extracts multimodal features directly from driving video segments [1]. - Impromptu VLA generates driving commands in natural language format without the need for manually designed perception modules or intermediate representations [1]. - In the NeuroNCAP closed-loop safety evaluation system, Impromptu VLA demonstrates strong decision robustness and generalization capabilities, significantly outperforming the latest BridgeAD system proposed at CVPR 2025 (2.15 vs. 1.60) [1].