Table:
text: 1970 Mexican Grand Prix
Classification
Classification
Driver Constructor_ Laps Time_Retired Grid
Rolf Stommelen Brabham - Ford 15 Fuel System 17
François Cevert March - Ford 8 Engine 9
Graham Hill Lotus - Ford 4 Overheating 8
Jo Siffert March - Ford 3 Engine 16
Emerson Fittipaldi Lotus - Ford 1 Engine 18

Question: What was the total lap count for Francois Cevert in the 1970 Mexican Grand Prix?

Question: Who designed Rolf Stommelen's car at the 1970 Mexican Grand Prix?