I thought it'd be good to give myself a challenge, set a three week deadline and join the HP Mars Home Planet modelling challenge.
This is the kind of vehicle I imagine a small team of explorers and scientists would require on the surface of Mars.
The challenge is judged by artists and expert engineers so I felt that although this is just a concept, it was important to base the Ranger on pre-existing, proven designs.
I also wanted to base it's feature set upon technologies that are currently being developed, to really ground the vehicle in realism.