Table:
text: 1991 Don't Drink Drive Sandown 500
Results
Results
Pos_ Class_ Entrant Drivers Laps
1 A GIO Racing Mark Gibbs Rohan Onslow 161
2 B Benson & Hedges Racing Alan Jones Peter Fitzgerald 155
3 A Playscape Racing Australia Kevin Waldock Brett Peters 152
4 A Gemspares Daryl Hendrick John White 144
5 C Toyota Team Australia Ron Searle Don Griffiths 141
6 C Speedtech Motorsport Geoff Full Paul Morris 122
DNF A Peter Jackson Racing Glenn Seton Gregg Hansford 146
DNF A Mobil 1 Racing Team Peter Brock Andrew Miedecke Tomas Mezera 133
DNF A Bob Jones Bob Jones Ed Lamont 122
DNF A Holden Racing Team Neil Crompton Brad Jones 103

Question: What were Glenn Seton Gregg Hansford's highest laps of the 1991 Don't Drink Drive Sandown 500?