The first generation Park Lane was made in New Jersey of all places. It was made as a 2 door coupe and a 4 door sedan. The only engine available was the 430 cubic inch V8.
The second generation Park Lane was an attempt by Mercury to reestablish a car between the Ford and Lincoln lineup. These cars were made in St. Louis because they were deemed to be too clean and classy for the state of New Jersey. Apparently nobody from Mercury had ever been to East St. Louis. The body styles on the second generation Park Lanes were once again 2 door coupe and 4 door sedan, but a 4 door station wagon was added for this go-around. The 428 cubic inch V8 was once again the only engine option.
The Park Lane name was revived once again in a trim package option on the Grand Marquis full size car.
The Park Lane had a higher end trim level sold in only 1967 and 1968, called the Park Lane Brougham. It was considered Mercury's top car offering for those years, a truly flagship product.
These cars are considered classics and are collected by Ford and Mercury fans. If you're looking to buy one, try checking on eBay for some good prices and loads of parts, many of them original. It's also a good place to sell your classic car and reach a huge audience, just make sure to include all the details including full model name, year, and plenty of pictures to draw the most bids. It's a shame to see one of these classics sell for below the price it should.