Toyota returned to Le Mans in 1989 with one 88C[2] joining two newer 89C-Vs. None of the three cars finished the race.

Apart from the 1988 24 Hours of Le Mans and the 1988 1000 km of Fuji (also valid as final round of the 1988 JSPC), the 88C made a final WSPC appearance early in the 1989 season when Toyota Team Tom's entered a lone car at Dijon-Prenois while awaiting their newer 89C-Vs.

In 1989 Toyota and All American Racers entered the GTP category of IMSA's Camel GT Championship.

[3] The 88C-based car made its debut at the 1989 Daytona 24 Hours race but retired from the event.

The best result was a second place at San Antonio and two pole positions at Road Atlanta and Lime Rock.