How many driver Bob Gerard Racing one have?
No Driver Entrant Constructor Chassis Engine
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1-21977627-1
1 B. Bira Private Maserati Maserati 4CLT/48 Maserati L4s
2 Emmanuel de Graffenried Private Maserati Maserati 4CLT/48 Maserati L4s
3 Tony Rolt Private Alfa Romeo Alfa Romeo B Alfa Romeo L8
4 Raymond Mays Ken Richardson T. Vandervell Ferrari Ferrari 125 Ferrari V12s
5 Bob Ansell Private Maserati Maserati 4CM Maserati L4s
6 Geoff Ansell Brian Shawe-Taylor Private ERA ERA B ERA L6s
7 Bob Gerard Bob Gerard Racing ERA ERA B ERA L6s
8 David Hampshire Billy Cotton Private ERA ERA B ERA L6s
9 David Murray Private Maserati Maserati 4CL Maserati L4s
10 Reg Parnell Scuderia Ambrosiana Maserati Maserati 4CLT/48 Maserati L4s
11 Fred Ashmore Scuderia Ambrosiana Maserati Maserati 4CLT/48 Maserati L4s
12 Luigi Villoresi Scuderia Ambrosiana Maserati Maserati 4CLT/48 Maserati L4s
15 Louis Chiron SFACS Ecurie France Talbot-Lago Talbot-Lago T26C Talbot L6
16 Louis Rosier Private Talbot-Lago Talbot-Lago T26C Talbot L6
17 Yves Giraud-Cabantous Private Talbot-Lago Talbot-Lago T26C Talbot L6
18 George Abecassis Private Alta Alta GP Alta L4s
19 Johnny Claes Ecurie Belge Talbot-Lago Talbot-Lago T26C Talbot L6
20 George Nixon Private ERA ERA A ERA L6s
21 Peter Whitehead Dudley Folland Scuderia Ferrari Ferrari Ferrari 125 Ferrari V12s
22 Duncan Hamilton Philip Fotheringham-Parker Private Maserati Maserati 6CM Maserati L6s
24 Philippe Étancelin Private Talbot-Lago Talbot-Lago T26C Talbot L6
25 Roy Salvadori Private Maserati Maserati 4CL Maserati L4s
26 Anthony Baring Private Maserati Maserati 4CM Maserati L4
27 John Bolster P.H. Bell ERA ERA B ERA L6s
28 Peter Walker P.N. Whitehead ERA ERA B ERA L6s
table_21977627_1
SELECT COUNT Driver FROM table WHERE Entrant = Bob Gerard Racing
Bob Gerard Racing