The Ford GT required you to put the accelerator and clutch to the floor and hit the start button. This would crank the engine without firing it and you could do this for as long as you wanted - but 5 seconds or so was enough to get the oil from the dry sump and over the engine.
I have to say it felt rather odd to crank that monster with the foot flat down on the go pedal. However I never appeared in next door's garden, so it did work.
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