<p>FIVE South Korean tourists behind the wheel of high-performance Porsches have been slapped with hefty fines after they were caught racing at more than 200kph on a highway in southern France, said police today.</p> <p>The drivers, aged 27 to 38, were spotted yesterday evening as they sped from the southwestern city of Bordeaux towards Vichy, about a four-hour trip when observing the 130kph speed limit.</p>