What is a build sheet?

A build sheet is the factory's record of how a specific vehicle was assembled. For Fiat and Alfa Romeo it ties the VIN to the model year, market, body style, engine family, trim, and the equipment the car was originally built with.

It's the most reliable way to confirm how a used Fiat 500, 124 Spider, Alfa Romeo Giulia, Stelvio, or Tonale was configured — more dependable than a badge or a seller's description.

What the build sheet shows

The build sheet covers powertrain, trim, body style, exterior and interior colors, wheels, packages, and factory options — the details that explain why two cars with the same model name can feel very different.

For performance models, it helps separate genuine mechanical packages from appearance trims, which matters on Quadrifoglio, Veloce, and Abarth-style configurations.

Trims & packages

One package name can include several smaller features — a comfort, appearance, or driver-assistance group can change the practical value of the car. Reading the build sheet carefully tells you what the vehicle actually carries.

Factory data should not be confused with later modifications: wheels, audio, badges, and trim pieces may have changed since delivery, so use the build sheet alongside photos and an inspection.

Fiat & Alfa Romeo Sales Codes Starting With S

9 FCA / Stellantis sales codes that start with S. ← Back to the navigator · Decode your VIN

Code	Description
SDW	Independent Dbl Wishbone withGas. This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.
SEM	Manual Load Leveling Pkg. This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.
SFD	Off-road. This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.
SGD	Off-road. This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.
SHG	Electronic Front Sway Bar Disconnect. This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.
SJG	Driver Assist Systems - High-Speed Overtake Warning. This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.
SJJ	Driver Assist Systems - Active Driving Assist System(5). This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.
SJK	Evasive Steer Assist(9). This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.
SNA	Dynamic Handling System. This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.

Meanings vary by vehicle family, model year, and market — your VIN's build sheet is the definitive list.