Finding your 1:1 car in scale has to be one of the true joys of collecting models. In the 16 years I've had the pleasure of possessing this '57 Roadmaster Riviera Sedan (Series 70, Model 73) below,
the models available keep growing, not in size but in number.

These scale treasures also show the dizzying array of roof treatments the owner could specify on the year's top-range Buick. Motor Max's 1:18 RM Convertible Coupe (Model 76C in 1:1 real-car scale) is inexpensive and loaded with detail,
and models faux stainless steel luggage straps on the trunk.

Conquest's 1:43 RM 75 Riviera Sedan was not inexpensive and has the quality one expected from the fine English company. (Except for the wide whitewall tires, which were never clean from the moment I un-boxed it)! The real Model 75 Riviera Sedan and Model 75R Riviera Coupe, introduced in mid-March 1957 with near-Cadillac-quality interiors, were not offered with the stainless strips on trunks or roofs. I know this to be true, as I have the March 18, 1957 issue of
Automotive News that contains an item about the 75's (and the '57 Eldo Brougham's) debut earlier that week.
(Also, the RM 75's made a splashy debut in
BUICK magazine's Spring 1957 issue).
The baby of the bunch, Racing Champion's 1:64 RM Riviera Coupe (Model 76R) shows the top treatment well for its small size and miniscule price. From the '57 line's intro in October '56, RM Riviera Sedans and Coupes (separate Models 73A & 76A, respectively) were also available without the roof stainless, but wore the stainless trunk strips. Oddly, according to a recently-acquired Canadian '46-'57 Master Chassis & Body Parts manual, only the RM 73 & 76R versions were available to our friends in the North. Just for fun, pop the hood on the littlest RM and you'll find a tiny "Fireball" 320 cid straight-eight, rather than the correct 364 cid "Nailhead" V-8. (The motor is a holdover from RC's earlier issue '49 Riviera Coupe).
Dealership Parts Managers, restorers, and sellers on ebay have been in a state of confusion ever since, and no article yet written covering '57 Roadmasters has ever got it right. Buick called them one- and three-piece backlights, but in reality the actual rear glass interchanges with all corresponding Cadillacs and Buick Super Models 53 & 56R (check your Hollander's Interchange or GM parts manuals if you don't believe me). The Buick Special (40 Series) and Century (60 Series) and
ALL Oldsmobiles in '57 used three separate pieces of glass in their B-Body backlights. All Cadillacs (save the limo), RM's and Supers used the longer, wider C-Body. (For example, if you see a '57 grille for sale and no parts numbers or model reference is available, count the vertical "electric razor" bars; 104 for Series 50 & 70, 100 for Series 40 & 60).

For lack of a better name, I just call this cool roof treatment the "Tiara Top," and it's my favorite design element on the entire car. (There are many of those elements to choose from on what Buick called their "Dream Car Designed" '57 Buick line). It reminds me of the Domeliner Observation Cars on railroads of the day.
In small-scale metal, I'm lucky to have such an abundance of choice; with the '57's growing popularity (previously thought of as the Rodney Dangerfield of '50's Buicks), it's only a matter of time till a 1:24th scale model joins the brood.
And then my little fleet will be complete!
TG
P.S. This was meant more as a short treatise, not the Unabomber's Manifesto, sorry.