I've made a lot of car drawings recently. Fifty drawings, which barely scratches the surface when you think there are about 50 billion cars on the face of the earth.
Most of the pictures are from memory or photos, and then I made some mono-prints. And in one case a Monaro-print. The prints aren't very large so the Hungarian micro cars were ideal. These prints are also very good practice for writing backwards which can come in handy if you are stuck in a phone box or something glass.