My ideal GPS system would be James May sitting next to me, politely telling me which way to go and also providing stimulating conversation about how variable vane turbochargers work. Him as a SatNav voice would be the next best thing.
It is not clear that James May will soon be a SatNav voice, but here he is recording such audio:
and more, as spotted by Road & Track:
I will patiently wait for any and all May-related GPS voice work. I would also not be against Clarkson doing one, but only if he gave intermittent lectures about the Boer War.