I’ve been handed a task by my supervisor to test my skills, the task he assigned to me was to;

Create an array of vehicle Manufacturers (Minimum of 3).

For each vehicle Manufacturers, create an array of (minimum of 3) vehicle models.

Write a loop that will list each manufacturers and their corresponding model.

Write out in numbers:
–The total number of manufacturers.
–The total number of models.
–The total number of models per manufacturers. 
If the number of manufacturers is greater than or equal to (5), it should be listed as a “GRADE A” manufacturer.

If the number of manufacturers is less than (5), it should be listed as a “GRADE B” manufacturer.
i have managed to get to this point,
let vecManufacturers= [‘Honda’, ‘Toyota’, ‘Hummer’, ‘BMW’, ‘Benz’];
let vecModels1= [‘Civic’, ‘Accord’, ‘Jazz’, ‘City’];
let vecModels2= [‘Hilux’, ‘Venza’, ‘Corolla’, ‘Camry’];
let vecModels3= [‘H1’, ‘H2’, ‘H3’, ‘H4’];
let vecModels4= [‘X1’, ‘X3’, ‘X5’, ‘6Series’, ‘7Series’];
let vecModels5= [‘Cclass’, ‘Sls’, ‘Glk’, ‘Slr’, ‘Cla’,‘GLA’];
let arrVehModels = [vecModels1, vecModels2, vecModels3, vecModels4, vecModels5];
for (let i = 0; i < vecManufacturers.length; i++) {
let manufacturer = vecManufacturers[i];
console.log(manufacturer);
let manuModels = arrVehModels[i];
for (let m = 0; m < manuModels.length; m++) {
var model = manuModels[m];
console.log(manufacturer, model);
}
};
writing the loop for the Grading has proven impossible, its been a serious case of writers block for days know! NEED HELP!!