Table:
text: 1985 German Grand Prix
Race
Race
Driver Constructor_ Laps Time_Retired Grid
Keke Rosberg Williams - Honda 61 Brakes 4
Eddie Cheever Alfa Romeo 45 Turbo 18
Elio de Angelis Lotus - Renault 40 Engine 7
Huub Rothengatter Osella - Alfa Romeo 32 Gearbox 25
Teo Fabi Toleman - Hart 29 Clutch 1
Ayrton Senna Lotus - Renault 27 CV joint 5
Derek Warwick Renault 25 Ignition 20
Nelson Piquet Brabham - BMW 23 Turbo 6
Patrick Tambay Renault 19 Spun Off 16
Marc Surer Brabham - BMW 15 Engine 11
Manfred Winkelhock RAM - Hart 8 Engine 22
Riccardo Patrese Alfa Romeo 8 Gearbox 9
François Hesnault Renault 8 Clutch 23

Question: How many laps did driver Patrick Tambay average at the 1985 German Grand Prix?

Question: For the 1985 German Grand Prix, when Renault is the constructor, the grid is over 6 and the time was called ignition, what is the greatest number of laps recorded?