Rays of recovery - GM China sales in April grew by 41pct YoY China Knowledge quoted US based auto giant General Motors Corp said its China sales in April grew by 41.1%YoY to 213,115 units. So far GM has sold 836,661 vehicles in China. Shanghai General Motors Corp Ltd, GM Chinese joint venture with Shanghai Automotive Industry Corp sold 324,913 vehicles in the period from January to April selling 89,562…