Looking for a new car? You have come to the right place! Mainline Auto Plex is where you need to be, we ALWAYS have 100 plus cars and all for $5,000 or less. We are here to help you find the reliable, affordable car you need. Mainline Auto Plex is a locally owned business since 2000, YES that’s 17 years servicing the Mainline and surrounding areas of Delaware county and beyond. We have multiple cars coming in every day, that are handpicked for our customers. Mainline AutoPlex 2261 Corsons Ln. Plymouth Meeting, PA 19462 Phone Number: 610-828-7777