 Complete the following phrase:  The car made its debut at the Spanish Grand Prix at Jarama in 1979, the fifth round of the season and the first European round after the non-ground effect FW06 was used for the first four rounds in the Americas and South Africa. The car proved to be reasonably competitive; Australian Alan Jones put the car 13th at Jarama and then 4th for the next round in Belgium; he even led 16 laps of the race before retiring with electrical failure. But when the 