  This article is concerned with the existence of positive weak solutions for
the following quasilinear Schr\"odinger Choquard equation:
  \begin{equation*}
  \begin{array}{cc}
  \displaystyle -div(g^2(u)\nabla u) + g(u)g'(u)\nabla u + a(x) u = k(x, u)
\;\text{in} \; \mathbb{R}^N,
  \end{array}
  \end{equation*}
  where $N \geq 3$, $\displaystyle k(x,u) := h(x,u) +
(I_{\vartheta}*|u|^{\alpha\cdot2^*_\mu})|u|^{\alpha\cdot2^*_\mu-2}u$, $g :
\mathbb{R} \to \mathbb{R}^+$ is a differentiable even function with $g(0) = 1$
and $g'(t) \geq 0$ for all $t \geq 0$; $h\in C( \mathbb{R}^N \times\mathbb{R},
\mathbb{R})$ and the potential $a \in C( \mathbb{R}^N, \mathbb{R})$. We
establish the existence of a positive solution using the change of variable and
variational methods under appropriate assumptions on $g$, $h$ and $a$.
