https://www.youtube.com/watch?v=LqLkusMVvs8

2026 BMW 8 Series — specs, trims, performance, and city/highway mpg estimates:

🔧 Trims & Engines

• 840i Gran Coupe / 840i / 840i xDrive — 3.0‑L turbocharged inline‑6 (BMW B58)
   ‑ ~335 hp / ~368‑369 lb‑ft torque. 

• M850i xDrive Gran Coupe — 4.4‑L twin‑turbo V8, ~523 hp / ~553 lb‑ft torque. 

All models have an 8‑speed automatic. 

🏁 Performance

• 840i RWD / xDrive Gran Coupe: 0‑60 mph in about 4.9 seconds (840i non‑xDrive) 

• M850i xDrive Gran Coupe: 0‑60 mph in ~ 3.6‑3.7 seconds 

⛽ City / Highway & Fuel Economy

Here are the estimated city / highway mpgs:

*Estimates; actual fuel economy depends on driving conditions, configuration, and options. 

📐 Other Notables & Dimensions

• Cargo (trunk) volume is around 15.5 cubic feet for the Gran Coupe variants. 

• Fuel tank capacity: ~ 18 gallons. 

• The M850i is heavier (~4,696 lbs) compared to the 840i trims.