3BA-LA400K · DBA-LA400K
Daihatsu Copen LA400K specs
LA400K is the model code of the Daihatsu Copen, a kei car. Japan’s transport ministry lists it in its fuel economy lists from 2015–2023 under 2 model types 3BA-LA400K, DBA-LA400K. A genuine car’s chassis number starts LA400K-.
Buying one? Read our Daihatsu Copen import guide for known problems, auction sheet notes and what to check.
LA400K at a glance
- Make
- Daihatsu
- Model
- Copen
- Model code
- LA400K
- Model types
- 3BA-LA400K, DBA-LA400K
- In MLIT’s lists
- 2015–2023
- Engines
- KF 658 cc petrol
- Gearboxes
- 5-speed manual, CVT automatic
- Drive
- front-wheel drive
- Kerb weight
- 850–870 kg
- Official fuel economy
- 18.6–25.2 km/L (53–71 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.
3BA-LA400K
Listed 2020–2023. The 3BA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2018 emissions rules. Check 3BA-LA400K against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| KF658 cc petrol | 5-speed manual | front-wheel drive | 850 kg | 2 | 18.6 km/L53 mpg, WLTC test | 2020–2023 |
| KF658 cc petrol | CVT automatic | front-wheel drive | 870 kg | 2 | 19.2 km/L54 mpg, WLTC test | 2020–2023 |
DBA-LA400K
Listed 2015–2019. The DBA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2005 emissions rules, 75% below their limits. Check DBA-LA400K against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| KF658 cc petrol | 5-speed manual | front-wheel drive | 850 kg | 2 | 22.2 km/L63 mpg, Japanese JC08 test | 2015–2019 |
| KF658 cc petrol | CVT automatic | front-wheel drive | 870 kg | 2 | 25.2 km/L71 mpg, Japanese JC08 test | 2015–2019 |
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.
LA400K 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 |
|---|---|
| 2015 | LA400K-007614 to 014567 |
| 2016 | LA400K-014568 to 019578 |
| 2017 | LA400K-019579 to 022420 |
| 2018 | LA400K-022421 to 025623 |
| 2019 | LA400K-025624 to 027910LA400K-040001 to 041495 |
| 2020 | LA400K-041496 to 044282 |
| 2021 | LA400K-044283 to 047735 |
| 2022 | LA400K-047736 to 052755 |
| 2023 | LA400K-052756 to 057221 |
| 2024 | LA400K-057222 to 060114 |
| 2025 | LA400K-060115 to 064867 |
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 LA400K before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start LA400K-, 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 Daihatsu Copen model codes
Questions
What engine does the LA400K have?
MLIT lists the Daihatsu Copen LA400K with KF 658 cc petrol.
What fuel economy does the LA400K get?
Officially between 18.6 and 25.2 km/L (about 53–71 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 LA400K?
Between 850 and 870 kg kerb weight, depending on the version.
Is 3BA-LA400K the same as LA400K?
Yes. 3BA-LA400K is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and LA400K is the model code. The chassis number starts with LA400K-.
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 Daihatsu 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.