5BA-LA850F
Subaru Stella LA850F specs
LA850F is the model code of the Subaru Stella, a kei car. Japan’s transport ministry lists it in its fuel economy lists from 2026 under the model type 5BA-LA850F. A genuine car’s chassis number starts LA850F-.
LA850F at a glance
- Make
- Subaru
- Model
- Stella
- Model code
- LA850F
- Model types
- 5BA-LA850F
- In MLIT’s lists
- 2026
- Engines
- KF 658 cc petrol
- Gearboxes
- CVT automatic
- Drive
- front-wheel drive
- Kerb weight
- 860–890 kg
- Official fuel economy
- 21.5–25.3 km/L (61–71 mpg)
Fuel economy is from Japan’s official tests and is usually better than you’ll see on UK roads. MLIT doesn’t list power or torque.
5BA-LA850F
Listed 2026. The 5BA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2018 emissions rules, 50% below their limits. Check 5BA-LA850F against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| KF658 cc petrol | CVT automatic | front-wheel drive | 860–890 kg | 4 | 24.3–25.3 km/L69–71 mpg, Japanese JC08 test | 2026 |
| KF658 cc petrol | CVT automatic | front-wheel drive | 860–890 kg | 4 | 21.5–22.6 km/L61–64 mpg, WLTC test | 2026 |
Each row is one version as MLIT lists it. A version can appear twice when MLIT gave figures on two tests that year. Low-emission stars and trim names aren’t shown. MLIT gives fuel economy in km/L; the mpg figures are our conversion to UK gallons. Japanese tests are gentler than real UK driving, so expect less.
LA850F build year by chassis number
Japan’s carmakers list the chassis numbers each code was built with every year from 2015. Find the serial below, or use the build year finder.
| Built | Chassis numbers |
|---|---|
| 2025 | LA850F-2000054 to 2002575 |
From the JAMA chassis number lists: 車台番号一覧表. We keep only the chassis code, serial ranges and year. JAMA calls them reference information, not a certificate.
Check an LA850F before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start LA850F-, and the engine and gearbox should match one of the versions above. Our free check reads the UK MOT history and compares it with the chassis code.
Other Subaru Stella model codes
Questions
What engine does the LA850F have?
MLIT lists the Subaru Stella LA850F with KF 658 cc petrol.
What fuel economy does the LA850F get?
Officially between 21.5 and 25.3 km/L (about 61–71 mpg), depending on the version, on Japan’s own tests. Real-world figures are usually lower, especially against the older 10-15 mode test.
How heavy is the LA850F?
Between 860 and 890 kg kerb weight, depending on the version.
Is 5BA-LA850F the same as LA850F?
Yes. 5BA-LA850F is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and LA850F is the model code. The chassis number starts with LA850F-.
About these figures
The model types, engine codes, capacities, gearboxes, drive, weights, seats and km/L figures are copied from MLIT’s yearly lists of cars on sale in Japan each March, so “listed” years are list years, not exact production dates. The English model names, mpg conversions, emissions code explanations and chassis number matching are ours. Lists before 2013 were printed as PDFs that we read by machine; where an older list gives an engine code that doesn’t match its capacity, we’ve used the figure the same model type has in other years. Check anything that matters against the car’s own papers. Spotted a mistake? Email [email protected]. All Subaru model codes.
Source: Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan, fuel economy lists 2004–2026, used under the Public Data License 1.0. Edited and translated by JDM History.