Reuters: A key European Union vote on curbing tailpipe emissions from cars ended in chaos last week, but a consensus is now emerging in favor of swiftly enforced limits and tight controls on potential loopholes. The lawmakers who will swing any further vote say they want a carbon dioxide limit as soon as possible and rules that spur car makers to innovate, without opening loopholes for inaction. The EU’s executive Commission has proposed cutting CO2 from cars by 18 percent to 130 grams …