The tri-five
Chevy's all did super well. They were all new from the frames up. 1955 had the first Chevy small block V8. 1956 the first pillarless 4 door, and 1957 a bored from 265 to 283 cubic in V8 with a fuel injection option.
So yes, much more new in cars than washers, but had Maytag introduced the Neptune in 1955?
Another Re-do for GM cars in '58 too. The X frame debuted, and the 348 V8 from Chevrolet, the prelude to the famous 409. The '58 Impala was a one year model run.
The styling race was in full swing with the space program. Horizontal tail fins came along with a lower body in '59.
There was one blunder, the variable pitch torque convertor Turboglide transmission.