What would posess someone to buy a shopping cart on wheels? No really, there are two seats: one for you and one for your groceries.
Parking spaces in Paris go for 40 to 250 Euro per month. You can also buy one for 43,000 Euro. (60,000 dollar parking spot anyone?)
But who needs to BUY a parking spot when you can fit your car in the 2 inch space between parking spots.