Has Jo Siffert won at Silverstone Circuit?

No. Jo Siffert's best result at Silverstone Circuit is P8, in 1969 with Lotus-Ford.

How many podiums has Jo Siffert scored at Silverstone Circuit?

0 podiums and 0 pole positions from 5 starts at Silverstone Circuit.

In the 1971 British Grand Prix Jo Siffert finished P9 for BRM, from P3 on the grid.

Silverstone, UK

Jo Siffert has raced 5 times at Silverstone Circuit in Silverstone, UK, scoring 0 wins, 0 podiums and 0 poles. Best finish: P8.

Has Jo Siffert won at Silverstone Circuit?: No. Jo Siffert's best result at Silverstone Circuit is P8, in 1969 with Lotus-Ford.
How many podiums has Jo Siffert scored at Silverstone Circuit?: 0 podiums and 0 pole positions from 5 starts at Silverstone Circuit.
How did Jo Siffert do at Silverstone Circuit most recently?: In the 1971 British Grand Prix Jo Siffert finished P9 for BRM, from P3 on the grid.

Races

Wins

Podiums

Poles

Fastest laps

Best finish

Races span 1963 – 1971. Total points scored at this circuit: 0.

Year	Team	Grid	Finish	Status
1971	BRM	3	P9	+2 Laps
1969	Lotus-Ford	9	P8	+3 Laps
1967	Cooper-Maserati	18	P19	Engine
1965	Brabham-BRM	18	P9	+2 Laps
1963	Lotus-BRM	15	P14	Gearbox