A police memo obtained by The Wall Street Journal says that car thieves across the five boroughs are scamming sellers on Craigslist by stealing their vehicles during test drives.

The memo didn't say how many of the more than 4,000 cars stolen in the past year were taken in this manner. (Nor did it say whether the thieves in question were any smarter than the individual(s) described in this Craigslist posting). For years, police and customers alike have been wary of buying stolen cars on Craigslist and there have been previous...