The XP-888, a project shrouded in secrecy within General Motors' Advanced Design Studios, was an ambitious undertaking by Oldsmobile in the late Sixties. Conceived as a two-seat sports coupe, it showcased innovative design elements and a vision for a unique driving experience. Led by Bill Mitchell's GM Design Staff, the XP-888 presented a compact yet sporty profile with an aggressive front end reminiscent of the era's iconic sports cars.

One distinguishing feature of the XP-888 was its modular roof concept, offering drivers the choice between a fastback or mini-wagon configuration. With the ability to switch between six different roof configurations, including a targa panel and removable rear hatches, the XP-888 aimed to provide versatility and customization unparalleled in its time.

Despite its promising design and enthusiastic reception within Oldsmobile, the XP-888 never progressed beyond the prototype stage. Various factors, including internal competition within GM and changing market dynamics, contributed to the project's cancellation. Ultimately, the XP-888 remained a captivating glimpse into what could have been—a testament to Oldsmobile's innovative spirit and its pursuit of automotive excellence. While it never saw production, the XP-888 left an indelible mark on automotive enthusiasts, sparking curiosity and speculation about its untapped potential.