Deletraz is undoubtedly the worst of the bunch in the modern era. This small passage from Rejects just about sums up what I remember of him:
"...he ended up qualifying the Pacific dead last, over 12 seconds slower than pole-sitter David Coulthard, more than 5 seconds behind the cumbersome Fortis and almost 7 seconds away from his own team-mate, Andrea Montermini.
"His time would have only qualified him 22nd for the F3000 support race. Now, whatever problems Délétraz and the team may have been having with what was admittedly a dog of a car, one can't deny that there was something quite disappointing about that."
:D
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The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function. -- F.Scott Fitzgerald