The 1998 Marlboro 500 Presented by Toyota was the nineteenth and final time of the 1998 CART FedEx Championship Series season.

The race was held 1 November 1998, and was the 2nd running of the Marlboro 500 at California Speedway.

It was won by Jimmy Vasser who passed Greg Moore at a final lap restart of a long race, which took well over 3 hours and also had many retirements.

This marks the final Champ Car race for the 3-Time Champion Bobby Rahal and also marked the final career podium for the two-time champion Alex Zanardi.