1. Pontiac GTO (2004)
The first year for the modern GTO was 2004. The car met universal praises from buyers and car press. Its design wasn’t exactly new or aggressive, but the new GTO had the muscle car form and street presence. Under the hood was an LS1 5.7-liter V8 with 350 HP. It had enough performance to be one of the hottest American cars for the 2004 model year. The target sales figure was 18,000 and Pontiac sold almost 14,000, which showed that buyers weren’t impressed (via Edmunds).
The 2005 model year saw the introduction of the 400 HP 6.2-liter engine. It had even better performance (0 to 60 mph time of just 4.6 seconds). Sales started to decline and by 2006, the final model year, the GTO was being blamed for singlehandedly causing the downfall of Pontiac as a brand.