Added more grass and changed location of castle, added 'farm'. The ground beneath the grass is brown now, like dirt should be, which highlights the amout of grass.
Adding details and tweaking the colour palette. More to come, obviously, but this is a product I am mildly pleased with so far.
Building the car itself. Full interior modelled as well, because I wanted an open ceiling window.
First concept of the scene. I took the height map of a mountain in Sardinia.
I replaced the default hair with somewhat more realistic grass as to create a contrast.