2021 BMW 750i xDrive — Full Specifications
As an Amazon Associate and CJ Affiliate and AWIN publisher we earn from qualifying purchases. Links below are affiliate links.
Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2021 BMW 750i xDrive is a saloon/sedan powered by a 4.4L 8-cyl turbo premium gasoline engine. It returns around 23 mpg (UK) / 19 mpg (US EPA) combined. Owners often keep a BMW 750i xDrive workshop manual to hand for servicing and repairs.
Compared with the 2020 BMW 750i xDrive: Fuel economy is essentially unchanged at around 23 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine | 4.4L 8-cyl turbo |
|---|---|
| Transmission | Automatic (S8) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | All-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 114 cu ft (3,228 L) |
| Luggage Volume (EPA) | 14 cu ft (396 L) |
| Fuel Economy (UK) | 23 combined / 20 urban / 29 extra-urban mpg |
| Fuel Economy (US EPA) | 19 combined / 17 city / 24 highway mpg |
| CO₂ Emissions | 283 g/km |
| EPA Greenhouse Gas Score | 3 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $4,350 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2021 BMW 750i xDrive, all with the 4.4L 8-cyl turbo engine. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 4.4L 8-cyl turbo | Automatic (S8) | All-Wheel Drive | 23 | 19 (17/24) | 283 | $4,350 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 114 cubic feet (about 3,228 litres) and luggage volume at 14 cubic feet (about 396 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2021 BMW 750i xDrive
Running Costs: 2021 BMW 750i xDrive
Covering around 8,000 miles a year in a 2021 BMW 750i xDrive at 23 mpg combined, expect roughly 1,581 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $4,350 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2021 BMW 750i xDrive Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists no safety recall campaigns for the 2021 BMW 750i xDrive as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
Owners have filed 2 complaints with NHTSA about the 2021 BMW 750i xDrive. The most-reported areas are Electrical system (1), Power train (1).
Used-buyer checklist for the 2021 BMW 750i xDrive
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (1 owner complaint) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Transmission & drivetrain (1 owner complaint) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
BMW models in our database average about 28 mpg (UK) combined on their most efficient configuration; the 2021 BMW 750i xDrive's 23 mpg is 5 mpg below that make average. Its 283 g/km CO₂ figure is 43 g/km higher than the 240 g/km BMW average.
Of the 12 BMW 750i xDrive model years we cover, the 2021 ranks 3rd for combined fuel economy on its best configuration (23 mpg UK combined, against a high of 24 mpg). See every BMW 750i xDrive year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2021 BMW 750i xDrive
Frequently Asked Questions
What engine does the 2021 BMW 750i xDrive have?
It's fitted with a 4.4L 8-cyl turbo premium gasoline engine, paired with a automatic (s8) transmission.
What is the fuel economy of the 2021 BMW 750i xDrive?
The most efficient configuration returns around 23 mpg (UK) combined, or 19 mpg on the US EPA cycle.
How much does the 2021 BMW 750i xDrive cost to fuel per year?
The US EPA estimates about $4,350 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2021 BMW 750i xDrive have any recalls?
NHTSA lists no safety recall campaigns for the 2021 BMW 750i xDrive as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
What are the most common problems reported for the 2021 BMW 750i xDrive?
Among the 2 owner complaints filed with NHTSA, the most-reported areas are Electrical system (1 complaint), Power train (1 complaint). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2021 BMW 750i xDrive have?
EPA measures interior passenger volume at 114 cubic feet (about 3,228 litres) and luggage volume at 14 cubic feet (about 396 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.