I have 'Bruce' on my Tomtom too Marmight - I like his voice, so reassuring, compared to the rather supercilious tones of the female voice.
We have never named cars, but my father did in the 50s. We had Ronnie Rover, followed by Ollie Austin.
My dad was keen on cars and a few others, including the first Triumph Herald in Stockport, followed in quick succession and none of these had names, until he got the car of his dreams, a Saab, which he called Sven.
We couldn't quite get our tongues round the pronunciation though and it didn't catch on.
Although we have never named our cars, DH has been ridiculously fond of them. We've just got rid of his ancient Toyota Avensis which he had for 12 years and replaced it with a Mitsubishi ASX and the day a certain Aziz from Leeds came to drive the Avensis away, DH was quite inconsolable 
I shall now have to try and think of a suitable Japanese sounding-name for the Mitsubishi 