Delphi Automotive PLC, the No. 6 auto supplier in North America in 2010, filed on Wednesday with the SEC for a placemark $100 million initial public offering, though the total deal size may actually range from $1 billion to $1.5 billion. Within the prospectus, Delphi states that they expect the company's value to exceed $6 billion upon completion of the offering. The Troy, Michigan-headquartered company, which was founded in 1997 and booked $14.4 billion in sales for the 12 months ended March 31, 2011, plans to list under the symbol DLPH. Goldman, Sachs & Co. and J.P. Morgan are the lead underwriters on the deal. No pricing terms were disclosed.