4BA-GAYA16
Lexus LBX GAYA16 specs
GAYA16 is the model code of the Lexus LBX. Japan’s transport ministry lists it in its fuel economy lists from 2025–2026 under the model type 4BA-GAYA16. A genuine car’s chassis number starts GAYA16-.
GAYA16 at a glance
- Make
- Lexus
- Model
- LBX
- Model code
- GAYA16
- Model types
- 4BA-GAYA16
- In MLIT’s lists
- 2025–2026
- Engines
- G16E 1,618 cc petrol
- Gearboxes
- 6-speed manual, 8-speed automatic
- Drive
- four-wheel drive
- Kerb weight
- 1,430–1,480 kg
- Official fuel economy
- 10.7–12.5 km/L (30–35 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.
4BA-GAYA16
Listed 2025–2026. The 4BA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2018 emissions rules, 25% below their limits. Check 4BA-GAYA16 against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| G16E1,618 cc petrol | 6-speed manual | four-wheel drive | 1,430–1,450 kg | 5 | 12.5 km/L35 mpg, WLTC test | 2025–2026 |
| G16E1,618 cc petrol | 8-speed automatic | four-wheel drive | 1,450–1,480 kg | 5 | 10.7 km/L30 mpg, WLTC test | 2025–2026 |
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.
GAYA16 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 |
|---|---|
| 2024 | GAYA16-001001 to 001916 |
| 2025 | GAYA16-001917 to 004628 |
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 a GAYA16 before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start GAYA16-, 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 Lexus LBX model codes
Questions
What engine does the GAYA16 have?
MLIT lists the Lexus LBX GAYA16 with G16E 1,618 cc petrol.
What fuel economy does the GAYA16 get?
Officially between 10.7 and 12.5 km/L (about 30–35 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 GAYA16?
Between 1,430 and 1,480 kg kerb weight, depending on the version.
Is 4BA-GAYA16 the same as GAYA16?
Yes. 4BA-GAYA16 is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and GAYA16 is the model code. The chassis number starts with GAYA16-.
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 Lexus 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.