Yeah, don't use scanf() use fgets().
Code:
#include <cstdio>
#include <cstdlib>
using namespace std;
int main()
{
char vehicle_make[30], vehicle_model[30], vehicle_year[30], tester[30];
puts("\n--------------------------------");
puts("Please enter the vehicle make: ");
fgets(vehicle_make, 30, stdin);
puts("Please enter the vehicle model: ");
fgets(vehicle_model, 30, stdin);
puts("Please enter the model year:");
fgets(vehicle_year, 30, stdin);
puts("Please enter your name:");
fgets(tester, 30, stdin);
puts("--------------------------------");
}