Ad #1: Fiat Genuine parts

The idea sounds awesome on paper; fake oil spills where cars are parked, forcing the drivers to have a look. But- there's my problem. how can the driver look at something that is UNDER his car? ok, if drivers notice the oil spill before they entered the parking spot, there's no guarantee they'd look at it when they are moving out.

I would have used a fake damaged concrete in front of the parking spot- indicating bad brakes. Copy'd be something like "Duplicate parts seldom save money. Use genuine ____ parts."

What do you say?

(image taken from Ads of the world.)