CREATE TABLE table_21154679_1 (top_speed VARCHAR2, max_power VARCHAR2)

What is the maximum speed for total power of ps (kw; bhp)?
SELECT top_speed FROM table_21154679_1 WHERE max_power = "PS (kW; bhp)"
SELECT "top_speed" FROM "table_21154679_1" WHERE "PS (kW; bhp)" = "max_power"