Group 1 - The core point of the news is the launch of the 4D millimeter-wave radar paid upgrade option for specific models of Zhijie vehicles, aimed at enhancing driving safety through improved obstacle detection capabilities [1][3]. - The 4D millimeter-wave radar upgrade is available for Zhijie S7 Max and above, Zhijie R7 pure electric Max and above, and Zhijie R7 extended range Max models, with prices starting at 4999 yuan for S7 Max and R7 extended range models, and 5079 yuan for R7 pure electric Max [3][10]. - The registration for the 4D millimeter-wave radar upgrade has begun, and the service will be provided based on the registration date starting September 30 [3][10]. Group 2 - Zhijie has initiated a free giveaway campaign for Bluetooth control keys across all models, with compensation in official app points for users who previously purchased the keys [7]. - The company is advancing the development of an official streaming rearview mirror, currently undergoing full vehicle verification [7]. - Zhijie has announced a cash subsidy of 20,000 yuan for all models, applicable for full payment purchases [7].