BMW 840i vs BMW M850i xDrive
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 BMW M850i xDrive
Overview
| Spec | BMW 840i840i | BMW M850i xDriveM850i xDrive |
|---|---|---|
| Selected trim | 840i | M850i xDrive |
| Body style | Sedan | Sedan |
| Drivetrain | rear wheel drive | all wheel drive |
| Fuel type | premium unleaded (recommended) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 8-speed shiftable automatic |
| Engine type | gas | gas |
| Model year | 2026 | 2026 |
Pricing & market
| Spec | BMW 840i840i | BMW M850i xDriveM850i xDrive |
|---|---|---|
| MSRP | $94,500 (best) | $110,500 |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | BMW 840i840i | BMW M850i xDriveM850i xDrive |
|---|---|---|
| Combined MPG | 24 MPG (best) | 19 MPG |
| City MPG | 21 MPG (best) | 17 MPG |
| Highway MPG | 29 MPG (best) | 24 MPG |
| Fuel tank | 18 gal | 18 gal |
Performance
| Spec | BMW 840i840i | BMW M850i xDriveM850i xDrive |
|---|---|---|
| Horsepower | 335 hp | 523 hp (best) |
| Torque | 369 lb-ft | 553 lb-ft (best) |
| Engine size | 3 L | 4.4 L (best) |
| Cylinders | I6 | V8 |
Size & capability
| Spec | BMW 840i840i | BMW M850i xDriveM850i xDrive |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 15.5 cu ft | 15.5 cu ft |
| Payload | 1,003 lbs | 1,012 lbs (best) |
| Curb weight | 4,180 lbs (best) | 4,696 lbs |
| Ground clearance | 4.8 in | 5 in (best) |
| Wheelbase | 119 in | 119 in |
| Length | 200.3 in | 200.3 in |
| Width | 76.1 in | 76.1 in |
| Height | 55.4 in | 55.4 in |
Safety & recalls
| Spec | BMW 840i840i | BMW M850i xDriveM850i xDrive |
|---|---|---|
| Open recalls (YMM scope) | 1 | None reported (best) |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | BMW 840i | BMW M850i xDrive |
|---|---|---|
| 1 | 840i $94,500 MSRP(Currently comparing) | M850i xDrive $110,500 MSRP(Currently comparing) |
| 2 | 840i $94,500 MSRP | M850i xDrive $110,500 MSRP |
| 3 | 840i $104,500 MSRP | M850i xDrive $120,300 MSRP |
BMW 840i vs BMW M850i xDrive FAQ
- Which is better: 2026 BMW 840i or 2026 BMW M850i xDrive?
- It depends on priorities. OpenDealer compares 2026 BMW 840i vs 2026 BMW M850i xDrive on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 BMW 840i or 2026 BMW M850i xDrive?
- Based on starting MSRP, the 2026 BMW 840i starts lower at $94,500.
- Which has better startingMsrp: 2026 BMW 840i or 2026 BMW M850i xDrive?
- The 2026 BMW 840i leads on startingMsrp in this comparison (94,500).
- Which has better combinedMpg: 2026 BMW 840i or 2026 BMW M850i xDrive?
- The 2026 BMW 840i leads on combinedMpg in this comparison (24).
- Which has better horsepower: 2026 BMW 840i or 2026 BMW M850i xDrive?
- The 2026 BMW M850i xDrive leads on horsepower in this comparison (523).