An extremely important excitement factor was its new V-8 motor that supplemented its long-standing "stove-bolt six." Then there was the new styling -- General Motors' A-body version of its B and C body themes launched for 1954. Differences from 1954 Chevys included slab fenders (with a flowing top line), the trunk lid at about the level of the fender tops, a lower hood not much above the fender line and, most important, a wraparound or panoramic windshield.
Another departure for Chevrolet was its grille. Heavy, chromed sculpted bars were replaced by something that looked like a tipped up storm sewer grid ... or perhaps a grille inspired by Ferrari (take your pick). Because it slanted forward and its vertical grid bars were set ahead of the horizontal ones, the grill opening usually looked like a dark, rectangular hole aside from the chromed frame. This was at odds with GM styling supremo Harley Earl's preference for sky-reflecting chrome trim. All-in-all, a curious feature that also was oddly likable.
Regardless, '55 Chevys sold very well. But even as they were being announced to the buying public, stylists were working on the obligatory (in those days) facelift for 1956. Moreover, a redesign wasn't scheduled until the 1958 model year, so there had to be a facelift styled for 1957 as well.