Table:
text: Stefan Johansson
Complete Formula One World Championship results
Complete Formula One World Championship results
Year_ Entrant Chassis Engine Pts_
1990 Moneytron Onyx Onyx ORE-1 Ford Cosworth DFR V8 0
1991 Automobiles Gonfaronnaises Sportives AGS JH25B Ford Cosworth DFR V8 0
1991 Footwork Grand Prix International Footwork FA12 Porsche V12 0
1991 Footwork Grand Prix International Footwork FA12C Ford Cosworth DFR V8 0

text: Stefan Johansson
Complete Formula One World Championship results
Complete Formula One World Championship results
Year_ Entrant Chassis Engine Pts_
1980 Shadow Cars Shadow DN11 Ford Cosworth DFV V8 0
1983 Spirit Racing Spirit 201C Honda V6 (t/c) 0
1984 Tyrrell Racing Organisation Tyrrell 012 Ford Cosworth DFY V8 3
1984 Toleman Group Motorsport Toleman TG184 Hart Straight-4 (t/c) 3
1985 Tyrrell Racing Organisation Tyrrell 012 Ford Cosworth DFY V8 26
1985 Scuderia Ferrari Ferrari 156/85 Ferrari V6 (t/c) 26
1986 Scuderia Ferrari Ferrari F1/86 Ferrari V6 (t/c) 23
1987 Marlboro McLaren International McLaren MP4/3 TAG V6 (t/c) 30
1988 Ligier Loto Ligier JS31 Judd V8 0
1989 Moneytron Onyx Onyx ORE-1 Ford Cosworth DFR V8 6

Question: Name the oldest model Porsche v12 that scores less than or equal to 0 in Stefan Johansson's overall results of the Formula 1 World Championship?