CREATE TABLE table_76297 ("Year" FLOAT, "Date" TEXT, "Driver / Rider" TEXT, "Car / Motorcycle" TEXT, "Time" TEXT, "Speed" TEXT)

What car/motorcycle goes 91.813mph?
SELECT "Car / Motorcycle" FROM table_76297 WHERE "Speed" = '91.813mph'
SELECT "Car / Motorcycle" FROM "table_76297" WHERE "Speed" = '91.813mph'