I dunno either, but they all earn a name of some sort or another.

To date all of my family's benzes have been named after their color, however that may change.

'85 300D Turbo Black/Palamino "Black Beauty" KIA Aug '88 at 78,000 miles by a nissan running a red-light and T-boning my mom. Fortunatly she was uninjured. The engine still ran, but the frame was bent. I had been promised that car when I turned 16 (was 10 at the time)

'87 300D Turbo Silver/Grey "Silver Bullet" Fast, but not too quick. Did not do well in the snow and ice so we sold it when we moved to Colorado.

'78 300CD White/Navy "White Lightning" Named for cognitive dissonance my first car. Got it at 158k miles, currently 221k miles My sister teases me by calling it the "White Wonder" since its so old she "Wonders if it will start"

'88 560SEL Navy/Palamino origionally planned on naming it "Big Blue" or something equally cheezy... although the terms "Damned Yankee" and "Kurt Weildheim" seem to stick alot (car was purchaced from PO in NY) I'm been calling it Kurt since it's been acting like an f'ing nazi and things only go well with it when I play Wagner or Beethoven. Time should tell..

I think we name our cars becuase that was a give the Germans gave us by only naming the cars with a number. Who would of thought the Germans could be so creative

Other cars in the family (although not mine"
'99 Acura 3.2TL no official name but I call it the "Akula" since its grey and looks like a shark
'01 VW Passat "Wolf Wagon" or "Wolfie" for short since Volk is also Russian for "Wolf"
'93 Jeep Grand Cherokee "Reggie" dunno how it got that name
'96 Jeep Grand Cherokee "Darth" was black

I'll chalk it up to a human nature towards personification of inanimate objects. But whatever works.