The Oldsmobile Alero is a midsize car that was produced by General Motors for its Oldsmobile division. Introduced in 1998 as a 1999 model, the Alero was the replacement for both the Achieva and Cutlass. The Alero was Oldsmobile's last new model nameplate, and — on April 29, 2004 — was also the last Oldsmobile ever built.