2023 BMW ALPINA XB7 Gas Tank Size & Fuel Capacity
Fuel tank capacity
21.9gal · 83 L
The 2023 BMW ALPINA XB7 has a fuel tank capacity of 21.9 gallons (83 liters).
A full tank is good for roughly 438 highway miles or 350 miles around town, going by the EPA ratings.
21.9 gal · Bigger than 76% of 2023 models we list.
2023 BMW ALPINA XB7 fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 4dr SUV AWD 4.4L 8cyl Turbo mild hybrid 8A · AWD MPG 16 / 20Range 350 / 438 mi | 4.4L 8cyl Turbo mild hybrid 8A | AWD | 21.9 gal83 L | 16 / 20 | 350 / 438 mi | |
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.
How far a 2023 BMW ALPINA XB7 goes on a tank
Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 17 MPG, a full 21.9-gallon tank covers about 372 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 21.9 | 438 | 350 |
| 3/4 | 16.4 | 328 | 263 |
| 1/2 | 11.0 | 219 | 175 |
| 1/4 | 5.5 | 110 | 88 |
| 1/8 | 2.7 | 55 | 44 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 882 gallons, roughly 40 full tanks.
Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.
What it costs to fill up a 2023 BMW ALPINA XB7
$115.63 to fill the 21.9-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 21.9 gal | Premium | $5.28 | $115.63 | $86.72 |
By region, 21.9-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $107.97 |
| Midwest | $5.37 | $117.60 |
| Gulf CoastLowest | $4.57 | $100.08 |
| Rocky Mountain | $5.12 | $112.13 |
| West Coast | $6.08 | $133.15 |
| CaliforniaHighest | $6.36 | $139.28 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 21.9-gallon tank$115.63
- A year of driving (15,000 mi)$4,659
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
ALPINA XB7 tank size in other years
The 2023 ALPINA XB7 uses the same 21.9 gal tank as every ALPINA XB7 since 2021.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2026 ALPINA XB7 | 21.9 gal | 438 mi |
| 2025 ALPINA XB7 | 21.9 gal | 438 mi |
| 2024 ALPINA XB7 | 21.9 gal | 438 mi |
| 2023 ALPINA XB7 | 21.9 gal | 438 mi |
| 2022 ALPINA XB7 | 21.9 gal | 460 mi |
| 2021 ALPINA XB7 | 21.9 gal | 460 mi |
2023 BMW ALPINA XB7 vs similar 2023 SUVs
At 21.9 gallons, the ALPINA XB7's largest tank ranks sixth of the seven 2023 SUVs compared here. The INFINITI QX80 carries the most (26.0 gal) and the Lexus LX 600 the least (21.1 gal).
| 2023 model | Tank | Longest highway range |
|---|---|---|
| INFINITI QX80 | 26.0 gal | 520 mi |
| Cadillac Escalade | 24.0 gal | 456 mi |
| Mercedes-Benz Maybach GLS | 23.8 gal | 476 mi |
| Land Rover Range Rover | 18.9–23.8 gal | 619 mi |
| Audi RS Q8 | 22.5 gal | 450 mi |
| BMW ALPINA XB7 | 21.9 gal | 438 mi |
| Lexus LX 600 | 21.1 gal | 464 mi |
Other 2023 SUVs of a similar size, one model per brand.
Frequently asked questions
What is the fuel tank capacity of the 2023 BMW ALPINA XB7?
The 2023 BMW ALPINA XB7 holds 21.9 gallons (83 liters).
How many gallons and liters does the 2023 BMW ALPINA XB7 gas tank hold?
The 2023 BMW ALPINA XB7 tank holds 83 liters, or 21.9 gallons in US gallons.
How far can a 2023 BMW ALPINA XB7 go on a full tank?
About 438 miles on the highway and 350 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
How many miles can a 2023 BMW ALPINA XB7 go on a quarter tank?
About 110 highway miles or 88 in town from the 21.9-gallon tank, which has roughly 5.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2023 BMW ALPINA XB7 take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2023 BMW ALPINA XB7?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 21.9-gallon tank from empty costs $115.63. It ranges from $100.08 in the Gulf Coast to $139.28 in California.
How much does a full tank of gas weigh in a 2023 BMW ALPINA XB7?
About 136 pounds for the 21.9-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2023 BMW ALPINA XB7 have a bigger gas tank than the Mercedes-Benz Maybach GLS?
No. The 2023 Mercedes-Benz Maybach GLS holds up to 23.8 gallons; the 2023 BMW ALPINA XB7 holds up to 21.9.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings. Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.