The 1958 Adventurer was an update to the all-new styling that car received in 1957. Along with the annual trim changes, the car also received a new grille with a mesh insert, plus dual headlights. The cars debuted at the Chicago auto show in January 1958. The Hemi engine was no longer available, instead a 361 cubic inch wedge head was used. DeSoto offered fuel injection (produced by Bendix Corporation), the units proved troublesome and were an expensive option so very few Adventurers were sold with them. Those not equipped with the unit received the dual-quad carburetors. The shortened model year, combined with the effects of the 1958 recession dropped Adventurer production down to 432 units, 350 hardtops and 82 convertibles, a 62 percent drop in sales compared to 1957. However DeSoto itself was in the midst of a sales free-fall, and all series production was off brand-wide.