CREATE TABLE table_16818 ("model" TEXT, "max. motive power" TEXT, "max. torque at rpm" TEXT, "engine displacement" TEXT, "engine type" TEXT, "engine configuration & notes 0-100km/h" TEXT)

How many engine b5234 t3?
SELECT COUNT("model") FROM table_16818 WHERE "engine type" = 'B5234 T3'
SELECT COUNT("model") FROM "table_16818" WHERE "engine type" = 'B5234 T3'