It's no secret that parking in the city is a bitch. So we've enlisted local parking guru and author of  Finding the Sweet Spot, David LaBua, to dish out weekly tips on navigating the ins and outs of city parking.

A short one for you this gorgeous Friday, asking Which is Greater?
 
The number of street parking spaces (including meters) in SF

or......

The number of registered cars in San Francisco?

Write your answer in the comments below, and check back after lunch for David's response!