British luxury carmaker Aston Martin plans to shed up to 500 jobs as it seeks to bring its cost base into line with reduced sports car production levels, it said on Thursday. The job cuts come just days after Aston Martin's second-largest investor reduced its stake in the company, and a week after it confirmed that Tobias Moers, CEO of Mercedes-AMG, would become chief executive on August 1, replacing Andy Palmer. The 107-year old firm said the job losses reflected lower than originally planned production volumes and improved productivity across the business.