The New-Man Joest Racing Porsche 956 won Le Mans by 2 laps after completing 360 laps. The New-Man car was driven by Henri Pescarolo and Klaus Ludwig. There was a second New-Man car, (#8) but this did not finish due to an over-heating problem after 170 laps.
When the slot was initially released it had incorrect tire branding. In true Slot.it form they produced a free set of replacement tires for all cars with the correct Dunlop branding. The car also comes with a LE cardboard card with release number. Expect to pay in excessive of $US150 for one.
The Kenwood Porsche 956 raced at Le Mans in 1983 and finished 3rd, 6 laps behind the winning car, (Rothmans Porsche 956 #3). The Kenwood car was driven by Mario Andretti, Michael Andretti and Philippe Alliot.
As the Kenwood was one of the first of Slot.it's 956 releases it is very difficult to find one in mint condition. As a result, expect to pay in excessive of $US150 for one also. There is actually an error in my Kenwood 956 compared to the released slot, see if you can spot it.
You can find out more about the 1984 Le Mans race here:
You can find the Slot.it specifications sheet, (PDF) here:
ManicSlots Collectibility Score: Extremely High!