The Scot, who first raced a Williams-Renault on the famous street circuit a decade ago, said Monaco is now 'more of a normal' circuit.
He refers to the inside kerb at turn 1, and the easier exit of flat-out Swimming Pool section.
"(Monaco) is now like Canada in a way," Coulthard, now driving for Red Bull, commented.
"Two of the areas that used to have more influence have been taken away."
Coulthard, 34, also denied that the forthcoming Liuzzi-Klien driver switch in the sister Cosworth-powered 'RB1' race car is a team distraction.
"They both drive at all the grands prix," he said, referring to the fact that, at Monaco, Christian Klien will steer the Thursday spare. -GMM