GMC SIERRA – specifications
Built: 2020 · Series: Trucks 3.5–12 t (Class N2)
Data for the version built 2020 · Data origin: Official register · sources
More machines from model year 2020
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
GMC trucks 3.5–12 t (Class N2) – a collective page of GMC ranges by EU vehicle class: Suburban, Sierra, Silverado and Savana alongside historic military trucks, engine outputs 67 to 332 kW
Class N2 groups, under EU vehicle law, trucks with a gross vehicle weight of between 3.5 and 12 tonnes; this page accordingly bundles GMC models classified as such in Dutch and Finnish registration data. The register mainly features the heavy pick-up and SUV ranges Sierra and Suburban, plus the Savana van (GMC's counterpart to the Chevrolet Express) and, as a historic addition, the military all-wheel-drive CCKW-353 truck from the Second World War era, popularly known as the "Jimmy".
Read on 3 more paragraphs
The register lists 218 versions with engine outputs of 67 to 332 kW, displacements of 2,695 to 7,485 cm³, four to eight cylinders, unladen weights of 2,300 to 9,940 kg and gross vehicle weights of 3,510 to 12,000 kg.
GMC positions itself as Chevrolet's sister brand, focused on higher-grade equipment on largely technically identical vehicles; the ranges recorded here cover almost the entire N2 payload class, from light pick-up to heavy Suburban SUV, and compete in the North American market with Ford and Ram.
On a used example, depending on the range, what counts is corrosion on the ladder frame and wheel arches, the condition of the automatic transmission and all-wheel drive, on diesel versions oil loss and engine mileage, and — on the historic military vehicles — the preservation state of the body and axles plus the limited parts supply through specialist vintage-vehicle dealers.
Sources: SpecCodex register, model data: GMC Klasse N2, GMC (General Motors, Hersteller)
Technical data
Engine
| Cylinders | 8correct |
|---|---|
| Displacement | 6,604 cm³correct |
Dimensions and weights
| Length | 6,350 mmcorrect |
|---|---|
| Width | 2,080 mmcorrect |
| Wheelbase | 4,040 mmcorrect |
| Unladen weight | 3,260 kgcorrect |
| Gross vehicle weight | 5,148 kgcorrect |
Drivetrain and chassis
| Wheels | 4correct |
|---|---|
| Top speed | 89 km/hcorrect |
Frequently asked questions
How much does the GMC SIERRA weigh?
The unladen weight is 3,260 kg.
What is the gross vehicle weight of the GMC SIERRA?
5,148 kg.
What engine does the GMC SIERRA have?
8 cylinders, 6,604 cm³ displacement.
How fast does the GMC SIERRA go?
Top speed is 89 km/h.
What are the dimensions of the GMC SIERRA?
6,350 mm × 2,080 mm.
When was the GMC SIERRA built?
Production years: 2020.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 11 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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Other models in this series
0000 CCKW 353
1500 SUBURBAN
1500 SUBURBAN GK16F-4X4/334
1500 SUBURBAN-3-GK16F-4X4/334
2 1/2 TON 6X6
2 1/2T 6X6
2.5 TON 6X6 C.O.E
2.5 ton TRUCK
2.5T 6X6 CCKW-353
2.5TON 6X6 CCKW-353
2500 HD
2500 HD CREWCAB
Sources: RDW — Dutch national vehicle register (retrieved August 2026) · Data sources and cross-checks
Truck in 3D section
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