pop ups aren't all bad

They are much maligned, but used properly they really can work - this is an excellent example. I was looking at a model of car on the Daihatsu web site. The car details were covered on four pages (overview, features, technical & accessories), and when I opened the the fourth, the following pop up appeared.
It might just be the nudge - call to action - that someone needs to take the next step in their purchase path.