How big does it need to be? Cuz under $20k SUVs pretty much boils it down to SUVs from Hyundai and Kia. If she can bump it up a few thou, the Saturn Vue and Mitsubishi Outlander pop up on the radar. Otherwise you'd have to likely go used, and those used choices can vary widely depending on how much room and how much offroad she needs to go.

If she doesn't really need an SUV, there are plenty of hatchbacks out there. The Opel Astra is something from GM I'm looking forward to.