For years, the Super and the Roadmaster constituted the upper echelon of Buick's lineup. The Limited, even more luxurious than the Roadmaster, returned for 1958. For 1959, the former two were renamed the Electra and the Electra 225 respectively, and the last was discontinued for being unsuccessful. The appearance was shared with two other Buick models, the mid-level Invicta and the entry level LeSabre. The Electra 225 nameplate was a nod to the latter car's overall length of over 225 in (5,715 mm), earning it the street name "deuce and a quarter."
The Electra 225 Riviera was the top-line model and it shared its six window hardtop roofline exclusively with Cadillac (which offered it on all of its models). Buick first applied the "Riviera" name to a premium trimmed 2-door Roadmaster hardtop in the middle of the 1949 model year, and thereafter denoted all Buick hardtops Rivieras. Also, from 1950 through 1953, Buick made a premium trimmed, stretched wheelbase sedan, exclusively in the Roadmaster and Super lines, that was called Riviera. But 1959 was the first year that not all Buick hardtops were called Rivieras. A standard 4-window four-door hardtop was also available, as was a 4-door 6-window pillared sedan, along with a stripped chassis of which 144 were built in 1959 and 1960. The two-door convertible was only available as an Electra 225, and the 2-door hardtop as an Electra. The Electra, along with all other 1959 Buicks, featured all new styling not shared with other GM divisions that included slanted headlights in front along with a highly chromed square grille somewhat similar to the 1958 Buick and "Delta-Fins" back along with round taillights. The "slanted" headlights were also shared with the 1958-60 Lincoln Continental. Exterior distinction from other Buicks came from extra-wide moldings, with a massive Electra emblem on the front fender extension. The Electra 225 script was found on the front fenders ahead of the wheelhouse. The 4-door models had a lower bright rear fender molding as well. The 1960 Electra and Electra 225 received a minor facelift with a concave grille and horizontal headlights centered by Buick's then-new "Trishield" logo, which is still in use today. Reintroduced to Electras and other Buicks for 1960 were the chrome VentiPorts first introduced in 1949 and last seen in 1957. Electra and Electra 225 models featured four VentiPorts on each front fender while lesser LeSabre and Invicta models had three VentiPorts. Electras featured wider rocker panel bright moldings and the Electra script on the front fenders ahead of the wheelhouse. Electra 225s featured a badge that was circled on the deck lid. The Electra 225 name was found on the front fenders in place of the Electra name. The Electra, along with the Invicta and LeSabre, was redesigned for 1961 with drastically shrunken fins, and was joined with the all-new compact sized Skylark/Special. Electras featured bright rocker panel and wheelhouse moldings. Four VentiPorts per front fender were a hallmark, with identification spelled out on the front fender plaques. Electra 225s had four "hash marks" interrupting behind the wheelhouse of the rear fender. Electra 225 nameplates were found on the front fenders. Electra interiors were trimmed in fabric. Electra 225s were trimmed in Calais cloth or leather trim, except for convertibles which were trimmed in vinyl. An optional Custom interior featured leather trim, while another featured vinyl with contrasting vertical stripes and front bucket seats with a storage consolex and power two-way seat adjustment.Standard equipment on the Electra included Turbine-Drive automatic transmission, "Mirromatic" instrument panel, directional signals, full-flow oil filter, electric windshield wipers, Deluxe steering wheel, trip mileage indicator, cigar lighter, Step-On brake, dual armrests, cloth and vinyl trim, combinations, carpeting, power steering, power brakes, two-speed windshield wiper/washer system, glovebox light, Custom-padded seat cushions and Deluxe wheelcovers. Two-tone Electras had the color accent on the rear cove. In addition Electra 225s had back-up lights, Glare-proof rearview mirror, parking lights, signal light, safety buzzer, courtesy lights, two-way power seat, Super Deluxe wheelcovers with gold accents and power windows. The Electra and Electra 225 were the same length in 1961. Buick discontinued the Electra nameplate at the end of the 1961 model year, leaving only the Electra 225 starting in 1962.