Factory build sheet
2021 Mercedes-Benz AMG GT AMG GT Black Series
Build W1KYJ8BA-M · 4L 8cyl · Rear-wheel drive · Coupe
VIN positions 1 through 8 read W1KYJ8BA and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every AMG GT whose VIN starts W1KYJ8BA and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 207 of them.
- Decoded Jul 7, 2026
- 207 known VINs
- 5 listed for sale now
Factory specification
As filed by Mercedes-Benz with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.
Engine
- Displacement
- 4 L
- Cylinders
- 8
- Configuration
- V-Shaped
- Engine model
- M178
- Engine manufacturer
- Daimler
- Valve train
- Dual Overhead Cam (DOHC)
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Rear-wheel drive
- Transmission
- Automated Manual Transmission (AMT)
- Forward speeds
- 7
Body & chassis
- Body class
- Coupe
- NHTSA body type
- PASSENGER CAR
- Doors
- 2
- Seats
- 2
- Seat rows
- 1
- Manufacturer
- MERCEDES-BENZ CARS
Weight rating
- GVWR class
- Class 1
- GVWR
- 6,000 lb or less
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
Driver assistance, as built
- Crash imminent braking Optional
- Lane departure warning Optional
- Lane keeping assistance Optional
- Blind spot warning Optional
Systems the filing does not record are not listed above. Check the window sticker of the exact car before you rely on any single feature.
How this VIN pattern is read
A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | W1K | MERCEDES-BENZ CARS · World manufacturer identifier |
| 4–8 | YJ8BA | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | M | Model year — 2021 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
207 vehicles carry this build
Every VIN we have decoded to W1KYJ8BA-M shares the specification above.
- 207 Known VINs
- 5 Listed for sale now
Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.
Neighboring configurations
Other factory configurations of the AMG GT, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.
- 2021 AMG GT 4L 8-cyl · RWD 92 vehicles · $127,599 median
- 2021 AMG GT C 4L 8-cyl · Convertible cabriolet · RWD 35 vehicles
- 2021 AMG GT 4L 8-cyl · Convertible cabriolet · RWD 71 vehicles · $103,438 median
- 2022 AMG GT53 3L 6-cyl · Sedan saloon · AWD 1,254 vehicles · $70,353 median
- 2023 AMG GT63 4L 8-cyl · Sedan saloon · AWD 115 vehicles · $122,698 median
Keep going
Where this data comes from
Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.
Vehicle counts come from the 207 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.