I'd never named a car before coming to this site, so I just used whatever came to mind at the time.
BoB (now retired) was a
Bucket
of
Bolts.
Zed is a bit obvious (if you ignore the X)...(and don't speak with a 'Murrican accent)
Baa is a
BA Astina.
When I finish rebuilding my bike, I'll have to think of a really clever name before I add it to the garage.