The portrait is very well done, it captures the expression and looks just like the actor. Some of the shading, especially on the nose, is a bit uneven, but it isn't really noticable. As for the car, the overall proportions are good, but the shading looks a bit sloppy. It's in all the right places, but is noticeably messier than the portrait.
Overall, good work, just work on refining some of the shading!