Sounds like most people are suggesting an SUV.

As I am not a fan of SUVs for many reasons, I'm going to play devil's advocate and recommend a Subaru. I drive a Subaru Outback with AWD. I have easily fit 2 bikes inside, plus gear. I"m sure a 3rd would fit if it needed to (granted, there'd only be room for 2 people).

With AWD and winter tires, I have all the traction and control I need and want (and I live & drive in the mountains. A lot). I also don't have a horrendous gas bill nor the guilt associated with gas guzzling. (I am now getting off my soapbox).