Nicky Hilton -- Baby on Board?

While Paris embarrasses herself in the land of BMW's, sister Nicky is stateside catching rides in her own luxury automobile -- a pimp, tinted minivan!

Nimble Nicky dashed out of Club Villa last night and hopped into the sliding door, soccer mom special -- where a baby seat had to be removed to let the heiress inside.

At least she had a driver!