GMC Syclone (1991–1991) Reliability
The GMC Syclone (1991–1991) scores 100/100 on our composite reliability index — excellent territory — drawn from NHTSA data. Estimated used prices span €1,500–€1,500.
Composite Score
100
/ 100
Excellent
Sources: NHTSA · latest 2026
Market Snapshot
Listed model years1991–1991
Est. used price€1,500–€1,500
Documented issues0
Listings in catalogue1
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Reliability by Source
Each independent organization measures reliability differently. TÜV reports inspection defect rates by age band. ADAC reports pan-European breakdowns per 1,000 vehicles. NHTSA aggregates US consumer complaints. DVSA MOT data is the UK fleet's annual safety inspection — every car 3+ years old. Lower variance across sources = higher confidence in the composite.
NHTSA (US Complaints)
Model years 1989–1993 · 2026 report · n=7
7 complaints across 2 sampled year(s); resolved model="SYCLONE"
View source ↗100
/ 100
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