Because it is no bigger than a small family car and eats up camping equipment, my Skoda Roomster Scout. Rear seats have 3 positions, or come out, or tip up, all independently, huge boot space, roof rails, higher off the ground than the non-scout model, so easier for those rutted tracks on 'wild' campsites.
Our car history (running 2 cars since the 1st Jazz)
X reg Nissan Micra
T reg Toyota Yaris
2003 Toyota Corolla
2002 Honda Jazz
2008 Honda FRV
2009 Toyota Prius
2008 Honda Jazz
2009 Honda FRV
2013 Honda CRV
Most fun? Sadly they were all more practical than fun!
Most practical -The CRV (still with us).
Best overall -The Prius (still with us as others have come and gone - so reliable and cheap to own).