Grid 15, how many lap have been there ending times exhaust?
Driver Constructor Laps Time/Retired Grid
1986 Brazilian Grand Prix
1122950
text text real text real
2-1122950-1
Classification
Classification
Nelson Piquet Williams - Honda 61 1:39:32.583 2
Ayrton Senna Lotus - Renault 61 + 34.827 1
Jacques Laffite Ligier - Renault 61 + 59.759 5
René Arnoux Ligier - Renault 61 + 1:28.429 4
Martin Brundle Tyrrell - Renault 60 + 1 Lap 17
Gerhard Berger Benetton - BMW 59 + 2 Laps 16
Philippe Streiff Tyrrell - Renault 59 + 2 Laps 18
Elio de Angelis Brabham - BMW 58 + 3 Laps 14
Johnny Dumfries Lotus - Renault 58 + 3 Laps 11
Teo Fabi Benetton - BMW 56 + 5 Laps 12
Thierry Boutsen Arrows - BMW 37 Exhaust 15
Michele Alboreto Ferrari 35 Fuel System 6
Alain Prost McLaren - TAG 30 Engine 9
Christian Danner Osella - Alfa Romeo 29 Engine 24
Stefan Johansson Ferrari 26 Brakes 8
Patrick Tambay Lola - Hart 24 Battery 13
Riccardo Patrese Brabham - BMW 21 Water Leak 10
Jonathan Palmer Zakspeed 20 Engine 21
Marc Surer Arrows - BMW 19 Engine 20
Alessandro Nannini Minardi - Motori Moderni 18 Clutch 25
Andrea de Cesaris Minardi - Motori Moderni 16 Turbo 22
Piercarlo Ghinzani Osella - Alfa Romeo 16 Engine 23
Keke Rosberg McLaren - TAG 6 Engine 7
Alan Jones Lola - Hart 5 Injection 19
Nigel Mansell Williams - Honda 0 Spun Off 3
SELECT SUM Laps FROM table WHERE Time/Retired = exhaust AND Grid < 15
exhaust 15