Yes; Sarah's Mini we called Bessie (after, guess what, the third Doctor's car of the same name). Her (our, ish) current car, a Peugeot, is called Peggy. Which works best if you deliberately mispronounce "Peugeot" with a hard "G". Peggy the PeuGeot... Although even pronounced properly, it's just a bit of casual alliteration that seems to work OK.