Turn right onto Grossmoahbogen

[pne]

We rented a car this week-end, and for a lark, I took my satnav with me for the drive home and switched the voice to English—I wanted to see how it would mangle the street names.

To my surprise, it did a fair job of it; I imagine, therefore, that the voices aren't really reading the spelling but that a pronunciation is stored along with each street name (as a list of phonemes or some such) and that the voices read out those.