Group 1 - The core point of the article is that Mercedes-Benz and BMW are in high-level negotiations to collaborate on engine technology, specifically for BMW to supply its four-cylinder gasoline engines for multiple Mercedes models, marking a historic cross-brand technology sharing initiative [1][3]. - The collaboration aims to reduce R&D costs and adapt to industry changes, with the potential to enhance the market sustainability of fuel vehicles and accelerate the deployment of plug-in hybrid models for Mercedes [1][3]. - The specific models that may utilize BMW's engines include CLA, GLA, GLB, C-Class, E-Class, GLC, and a planned small SUV, which indicates a broad application of the partnership [3]. Group 2 - The BMW B48 series 2.0-liter turbocharged four-cylinder engine is expected to be produced in Austria and offers layout flexibility for both compact and mid-size vehicles, which could benefit Mercedes' vehicle lineup [3][4]. - The partnership may extend beyond engine sharing to include technology collaboration in areas such as transmissions, although no official confirmation of the details has been made yet [4]. - The outcome of the negotiations is anticipated to be announced by the end of the year, indicating a timeline for potential developments in this collaboration [4].