Ford Motor Co. , Detroit, has begun offering Fidelity Investments'...

Ford Motor Co., Detroit, has begun offering Fidelity Investments’ Internet-based "retirement planning tool,’’ called Fidelity PortfolioPlanner, to its 145,000 plan participants, according to company spokeswoman Francine MacBride. Ford’s 401(k) plan has about $12.1 billion in assets and includes more than 55 funds and a Ford common stock investment option. The PortfolioPlanner provides 401(k) plan participants with model portfolios customized to the options in Ford’s plan, information on how much they need to save for retirement, and asset allocation.