GM has made significant improvements overall in their quality, including multi-year testing contracts for their full sized Hybrid SUV's. The Hybrid Tahoe/Yukon has been in the park services for 2-3 years now prior to being released to the public. GM is also embracing alternative fuels (hybrids, ethanol, diesel, and gasoline) where Toyota is focused (in the US anyway) mostly on small hybrids and gasoline. Lastly, do not forget the fiasco with Toyota/Lexus this year with their V6 camry (best selling sedan) and the the Lexus counterpart. They acknowledged there were known defects over the last few years, but released the vehicles anyway. Overall, I think Toyota has been better for quality than the big 3, but GM is learning and correcting their mistakes, while Toyota in their quest to move up in the ranks is taking the same risks as the big 3.