Table:
text: 1986 Belgian Grand Prix
Classification
Classification
Driver Constructor_ Laps Time_Retired Grid
Philippe Streiff Tyrrell - Renault 40 + 3 Laps 18
Jonathan Palmer Zakspeed 37 + 6 Laps 20
Andrea de Cesaris Minardi - Motori Moderni 35 Out of Fuel 19
Huub Rothengatter Zakspeed 25 Electrical 23
Martin Brundle Tyrrell - Renault 25 Gearbox 12
Alessandro Nannini Minardi - Motori Moderni 24 Gearbox 22
René Arnoux Ligier - Renault 23 Engine 7
Nelson Piquet Williams - Honda 16 Turbo 1
Thierry Boutsen Arrows - BMW 7 Electrical 14
Johnny Dumfries Lotus - Renault 7 Spun Off 13
Keke Rosberg McLaren - TAG 6 Engine 8
Piercarlo Ghinzani Osella - Alfa Romeo 3 Engine 24

Question: Consider the 1986 Belgian Grand Prix, what is the highest numbered 3+ lap starting grid for Piercarlo Ghinzani?

Question: How many laps for an over 18 grid and retirement due to power failure for the 1986 Belgian Grand Prix?