General Motors Complaint - Historically Poor Reliability w/ 6 Vehicles
1995 Lumina: Purchased new. Blew a head gasket at 50k.
1996 Monte Carlo: Purchased new. Blew head gasket at 60k. Recurrent PCV valve problems.
1996 Pontiac Firebird: Purchased new. Over 7k in repair costs at just over 100k miles. Too many problems to list. Mostly electrical. Failing suspension, emissions systems, and transmission (excluding everything already repaired or replaced).
2003 Silverado: Purchased new. Failed emissions systems. 3k in repair at just over 100k miles.
2004 GMC Sierra: Purchased new. Engine replacement at 100,938 miles. Oil pump problem caused internal engine damage. Fuel pump has also been replaced in addition to the engine. 5k in repair costs.
2006 Silverado: Purchased new. Failed fuel pump at 80k miles.
All vehicles in this list were either mine or owned by my family over the past 15 years. All were perfectly maintained over their life and garage kept.
GM has bankrupted, and has poor reliability. Need I say more? You are risking a great deal of time, money, and energy if you are purchasing anything made by GM. Why bother? I will personally never again touch a GM product and actively spread the word about my experience with their vehicles.