I have drawn a simple car with this code:
\begin{tikzpicture}
\shade[top color=red, bottom color=white, shading angle={135}]
[draw=black,fill=red!20,rounded corners=1.2ex,very thick] (1.5,.5) rectangle (6.5,2.5);
\draw[draw=black,fill=gray!50,thick] (3,.5) circle (.5);
\draw[draw=black,fill=gray!50,thick] (5,.5) circle (.5);
\draw[draw=black,fill=gray!80,semithick] (3,.5) circle (.4);
\draw[draw=black,fill=gray!80,semithick] (5,.5) circle (.4);
\draw[->,semithick] (0,-.5) -- (0,3);
\draw (0,3.5) node {$r[x(t)]$};
\draw[->,semithick] (-.5,0) -- (8,0);
\draw (8.5,0) node {$x(t)$};
\end{tikzpicture}
And this is the result:
There is a simple way to define the outline more similar to a car?
Thanks to all.
Best Answer
A vintage car: