Reuters: Leading European investment managers and pension funds controlling nearly $1 trillion have joined forces to call for automakers to better explain how they have lobbied public bodies on emissions standards. Nineteen investors including AXA Investment Managers, the fund arm of insurer AXA (AXAF.PA), and the Swedish national pension fund, wrote separate letters to 11 major automakers, retail investor watchdog ShareAction said in a statement. Volkswagen (VOWG.DE), BMW (BMWG.DE), Honda (7267.T), Daimler...