TheOldsmobile O4 was afront-wheel driveconcept car designed byOldsmobile in 2001. The O4 was a 4-doorconvertible that was aimed at a younger demographic. The O4 displayed features that would have been included on the next generationOldsmobile Alero, had it not been cancelled.^[1]

Many of the O4's mechanical components originated from theOpel Astra, aGermansmall family car. The O4 had a 4-cylinder engine that produced 190 hp (142 kW), along with a manual transmission. The roof featured twintarga tops made of carbon fiber that could be stowed behind the rear passenger seats. In addition, the rear window retracted into a compartment located behind the rear passenger seats. The Oldsmobile O4's doors have a manner of front conventional doors and rear smallsuicide doors.^[2]

The O4 was also noted for its "info ring" which replaced the traditional instrument cluster. The info ring was inspired by thePalm Pilot and similar devices. The "info ring" had 10 switches that operated all of its functions. Media and other information such as movies, maps, and telephone numbers were able to be stored and displayed viaSony memory stick. The O4 was also equipped withGeneral Motors'OnStar service.

The "O" in O4 stood for "Oxygen" while the "4" represented the car's seating capacity.^[3]

The Oldsmobile O4's doors open in a manner of front conventional doors and rear smallsuicide doors. The Oldsmobile O4 has 2 silverdoor handles on the front doors while it does not havedoor handles for the rear doors.

Just weeks before the O4's unveiling,General Motors announced its phasing out of theOldsmobile brand. By the time of the O4's unveiling, the O4 was called the GM O4, with the "Oldsmobile" marque removed.

• Oldsmobile concept vehicles
• Cars introduced in 2001
• Front-wheel-drive sports cars
• Sport compact cars
• Convertibles

• Articles with short description
• Short description is different from Wikidata