The '58 Corvette (which spawned the non-P-M '59) was also in the line.
But I have to wonder if the P-M line was unsuccessful because people weren't willing to pay a couple of bucks extra for extra content, or the fact that the extra content (with the exception of the Daytona Charger's P-E Grill - which was subsequently included in every reissue of it - so it couldn't be expensive to create) was an expanded set of instructions and a bigger box. While all of the kits are good kits, well engineered, etc, they're hardly a "high-water" mark for Revell and something we all lament the downfall of ever since. Unlike the Fujimi Enthusiast Series where they've never produced a set of kits as detailed and parts-heavy since then. Revell's kits (for all of their various issues) haven't gotten substantially worse since the late-90's when the P-M kits series debuted. The '40 & '48 Ford Convertibles and '69 Charger provided the basis for tooling that as Brett points out have been in the catalog in some form ever since then.
The P-M line suffered from "Factory Stock-itis". Now I realize it's how *I* build, but a Factory Stock '40 Ford probably didn't sell as well in it's P-M run as the subsequent Street Machine versions did in theirs. Same thing for the '48 Ford. I bet the pre-chopped "Custom" sold far more kits than the bone stock Convertible did. Still wish they'd do non-chopped Street Machine or something out of that tool so I could build a replica stock coupe, but I digress.
The P-M line also spawned right at the time when THE major upheaval in the industry took place. No one can really look at the end of the 1990's and the resulting all but destruction of AMT/MPC and the random floating of Revellogram that took place for the next half decade as a good thing.
Revell never seems to tip it's hand as to it's sales figures, but we know that PRICE isn't the be all and end all of things these days.
Example 1 - Moebius - They're a bit more transparent, and as a result we know that the first runs for the Hudson, the LoneStar, the Chrysler & Great Dane Trailer all sold out en-route on the boat. Those kits are all more expensive than Revell's price point, even without considering the larger price of Big Truck kits.
Example 2 - Aoshima - Again a bit more transparent., and as a result we know the first runs for the Toyota 86/FR-S & BRZ as well as their version of the Aventador all sold out. If you didn't have those kits on Pre-Order directly out of Japan chances are you didn't get one until several months later when the 2nd run was done. The entry point (without shipping/importing) is $8-10 higher than Revell.
Bottom line subject matter is what sells. I'd love to know how the Olds & Ford did. From a "second-hand" view I know that I attended one of the first shows that was held after the '50 Olds was shipped out from distributors. I arrived 90 minutes after the doors opened, and it was SOLD OUT of every vendor. Now if Revell included photo-etched scripts, an expanded instruction sheet (since I ESPECIALLY LOATHE the retro box and part number with no paint call out/description they've decided to institute this year), and just corrected all the piddly errors that plague some of these kits would they not have sold out the same kits? Is that extra $3-5 really going to make or break the "correct" subject matter?
Rounding this back to this kit. It has "0" appeal to me regardless to how they did it, because I don't care about the subject matter, but it's certainly a kit that destined more about what the shiny bits look like than the dirty underside. That doesn't let Revell off the hook by any means, they should be constantly prodded to produce their best by constructive criticism. They are the #1 company in the U.S. at the moment, and don't think they should be allowed to slide on their laurels. Revell is never going to close their doors and go pout because we critique their kits, there should be a "striving towards excellence" culture there.
However the thing that would stop a kid or adult that's new to the hobby from ever building another Revell kit (or perhaps model in general) is long gone from Revell's kits. Pretty much every kit that Revell has produced in recent years (especially after the Hobbico purchase and infusion of operating capital) is reasonably easily built. If you give someone a Rat Roaster, some paint and glue at some point in the future they will have something that resembles a '32 Ford hot rod.