The 1987 Panasonic DX-4000 was the 3rd best bike in the DX series offering for 1987. With a new selling price around $500, the DX-4000 attracted more serious cyclists in search of a lighter weight bike with quality components. The DX-4000 series and above are what I would consider to be the bikes to find today if you’re in search of a high quality retro-ride. Specifications coming soon.
Thanks to Ryan for sharing photos of his bike.