2025 BMW ALPINA B8 Gran Coupe Gas Tank Size & Fuel Capacity
Fuel tank capacity
18.0gal · 68 L
The 2025 BMW ALPINA B8 Gran Coupe has a fuel tank capacity of 18.0 gallons (68 liters).
A full tank is good for roughly 432 highway miles or 306 miles around town, going by the EPA ratings.
18.0 gal · Bigger than 51% of 2025 models we list.
2025 BMW ALPINA B8 Gran Coupe fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 4dr Sedan AWD 4.4L 8cyl Turbo 8A · AWD MPG 17 / 24Range 306 / 432 mi | 4.4L 8cyl Turbo 8A | AWD | 18.0 gal68 L | 17 / 24 | 306 / 432 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 2025 BMW ALPINA B8 Gran Coupe 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 19 MPG, a full 18.0-gallon tank covers about 342 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 18.0 | 432 | 306 |
| 3/4 | 13.5 | 324 | 230 |
| 1/2 | 9.0 | 216 | 153 |
| 1/4 | 4.5 | 108 | 77 |
| 1/8 | 2.3 | 54 | 38 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 789 gallons, roughly 44 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.
- EPA combined
- 19 MPG
- Tailpipe CO2
- 458 g/mi
- EPA greenhouse score
- 4 of 10
- Source
- EPA ratings
What it costs to fill up a 2025 BMW ALPINA B8 Gran Coupe
$95.04 to fill the 18.0-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 |
|---|---|---|---|---|
| 18.0 gal | Premium | $5.28 | $95.04 | $71.28 |
By region, 18.0-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $88.74 |
| Midwest | $5.37 | $96.66 |
| Gulf CoastLowest | $4.57 | $82.26 |
| Rocky Mountain | $5.12 | $92.16 |
| West Coast | $6.08 | $109.44 |
| CaliforniaHighest | $6.36 | $114.48 |
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
- 18.0-gallon tank$95.04
- A year of driving (15,000 mi)$4,168
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
ALPINA B8 Gran Coupe tank size in other years
The 2025 ALPINA B8 Gran Coupe uses the same 18.0 gal tank as every ALPINA B8 Gran Coupe since 2022.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2025 ALPINA B8 Gran Coupe | 18.0 gal | 432 mi |
| 2024 ALPINA B8 Gran Coupe | 18.0 gal | 432 mi |
| 2023 ALPINA B8 Gran Coupe | 18.0 gal | 432 mi |
| 2022 ALPINA B8 Gran Coupe | 18.0 gal | 432 mi |
2025 BMW ALPINA B8 Gran Coupe vs similar 2025 sedans
At 18.0 gallons, the ALPINA B8 Gran Coupe's largest tank ranks third of the five 2025 sedans compared here. The Lexus LS carries the most (22.2 gal) and the Volvo S90 the least (15.9 gal).
| 2025 model | Tank | Longest highway range |
|---|---|---|
| Lexus LS | 21.7–22.2 gal | 644 mi |
| Audi RS 7 | 19.3 gal | 405 mi |
| BMW ALPINA B8 Gran Coupe | 18.0 gal | 432 mi |
| Mercedes-Benz E-Class | 17.4 gal | 574 mi |
| Volvo S90 | 15.9 gal | 493 mi |
Other 2025 sedans of a similar size, one model per brand.
Frequently asked questions
What is the fuel tank capacity of the 2025 BMW ALPINA B8 Gran Coupe?
The 2025 BMW ALPINA B8 Gran Coupe holds 18.0 gallons (68 liters).
How many gallons and liters does the 2025 BMW ALPINA B8 Gran Coupe gas tank hold?
The 2025 BMW ALPINA B8 Gran Coupe tank holds 68 liters, or 18.0 gallons in US gallons.
How far can a 2025 BMW ALPINA B8 Gran Coupe go on a full tank?
About 432 miles on the highway and 306 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 2025 BMW ALPINA B8 Gran Coupe go on a quarter tank?
About 108 highway miles or 77 in town from the 18.0-gallon tank, which has roughly 4.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2025 BMW ALPINA B8 Gran Coupe take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2025 BMW ALPINA B8 Gran Coupe?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 18.0-gallon tank from empty costs $95.04. It ranges from $82.26 in the Gulf Coast to $114.48 in California.
How much does a full tank of gas weigh in a 2025 BMW ALPINA B8 Gran Coupe?
About 112 pounds for the 18.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2025 BMW ALPINA B8 Gran Coupe have a bigger gas tank than the Audi RS 7?
No. The 2025 Audi RS 7 holds up to 19.3 gallons; the 2025 BMW ALPINA B8 Gran Coupe holds up to 18.0.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings (fueleconomy.gov). 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.