The most expensive variant of the BMW 6 Series is likely the BMW M6 Gran Coupe. The M6 models, produced by BMW’s M division, are high-performance versions of the 6 Series known for their powerful engines, sport-tuned suspensions, and other performance-oriented features. The M6 Gran Coupe, in particular, is a four-door coupe variant with a sporty design and enhanced performance. It often comes equipped with a more powerful engine compared to the standard 6 Series […]
