The sheer number looks impressive can't deny that, I just wanted to add to Greg's comment on 'modern tech, tires and only 5:19 Vs 6:11'.
When you factor in this was an illegal purpose built car, the electric motor just for the front wheels alone is almost the power for the entire 956, regen braking, KERS, non spec ground effects, illegal active aero, DRS....this isn't a car anymore but more like a rolling PC. Michelin even made a special tire just for this run yet with no traffic at all and no cars to pass this rolling computer with 90% more hp than a 956 could only go 50 seconds faster? Context is very important here and only highlights how incredible Group C cars were 30 years earlier.