Although it debuted back in 1998, the 1939 Lincoln Zephyr "Scrape" Custom remains a custom car world icon. It's the result of a collaboration between Hot Rod Magazine editor Terry Cook and custom coach builder Ramsey Mosher, and it took more than 4,500 hours of custom fabrication work. What started off as a barn-find Lincoln has become this gorgeous (or hideous, to some) creation, and now it's heading to RM Auction's Santa Monica event on June 24.

What's interesting is that this is the first custom show car to sit completely flat on the ground with its hydraulics system dropped. In addition, its components are something of a combination from Ford and GM. For example, the original 1939 Zephyr rear is still there, along with same model year Ford headlights and widened fenders. There's also a custom rear window opening and a heavily chopped roof. Underneath there's a 1978 Chevrolet frame and running gear, with power coming from a small block 350 cubic-inch V8 paired to a three-speed automatic. Inside there are Cadillac split-bench power seats and other creature comforts like air conditioning, power windows, power brakes and power steering.

Upon its initial reveal, the "Scrape" became such a big hit that Mattel launched a 1/18-scale Hot Wheels toy model that quickly sold out. More recently, it's received a $60,000 tune up and a 3,500-mile shakedown cruise. If you're seriously interested, the auction estimates it'll fetch between $300,000 and $400,000. Photos courtesy of RM Auctions.