I know: two unattainable Astons in three days, with another unattainable McLaren sandwiched between them. But this one is something else again and, I feel, a car likely to be afforded a somewhat warmer reception than the others even if there is and only ever will be one in the world. And while Aston isn’t saying, we calculate its cost to be something in the region of £4m. For which one rather rich Belgian has bought the quite extraordinary Aston Martin Victor.