Here are the results for Day 4:

Pos  Driver  Team  Time Laps
01 Janos Magasrevy Mercedes 1:14.802 24
02 Roberto Bianco Williams 1:15.184 37
03 David Carney Lotus 1:15.719 17
04 Johan Mola Mercedes 1:15.996 63
05 Samuel Campisciano McLaren 1:16.354 23

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Combined results from day 1 to day 4:

Pos Driver Team Time Laps
01 Janos Magasrevy Mercedes 1:14.802 65
02 Roberto Bianco Williams 1:15.184 151
03 David Carney Lotus 1:15.719 17
04 Johan Mola Mercedes 1:15.996 227
05 Samuel Campisciano McLaren 1:16.354 122
06 Otto Acosta McLaren 1:16.524 45
07 Richard Haynie Williams 1:17.706 41
08 Juan Cardozo Williams 1:18.524 34
09 Franco Bianco Sauber 1:19.852 73
10 Jose Sanchez Sauber 1:39.687 8
11 John Cook McLaren No Time 8
12 Eduardo Gomez Sauber No Time 1
13 Nathan Byrd Ferrari No Time 1
14 Don Presby Ferrari No Time 0