Plenty of M850i models with fewer than 50,000 miles can be found for around $45,000, despite carrying a starting price of $111,900 when new. That used price is new Nissan Z money, and this car is not that old. Alpina also sold its own version of the 8 Series Gran Coupe, dubbed the B8 Gran Coupe, though examples were so rare you'll be lucky to find one outside a collector-car auction. BMW 8 Series Powertrain Lineup2026 BMW 8 Series Side View BMWThe second-generation 8 Series rode on BMW's familiar CLAR platform, meaning it shared much of its engineering with models like the 5 Series, 7 Series, and X5. BMW 8 Series Reliability: What To Watch Out For2026 BMW 8 Series Rear View BMWReliability for the 8 Series ranks above average for the segment, with J.D.