What's wrong with this code?

I'm new to C and I decided to try and make a quick program after learning the basics, but it doesn't seem to be working. I want it to display the car model when it receives the year the user asks for.

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#include <stdio.h>

#include <stdbool.h>

#include <string.h>

struct Car

{

char brand[45];

char model[45];

int year;

};

int main(){

struct Car car1={"BMW", "X5", 1999};

struct Car car2={"Ford", "Mustang", 1969};

struct Car car3={"Toyota", "Corolla", 2011};

int carYear;

printf("Which year would you like to know the car model of? ");

scanf("%d", carYear);

if (carYear == car1.year){

printf("The model is %s", car1.model);

} else if (carYear == car2.year){

printf("The model is %s", car2.model);

} else if (carYear == car3.year){

printf("The model is %s", car3.model);

} else {

printf("Not found in database.");

}

}