I think you have the solution to your problem with you already. It would be the BEST if you measure everything and make it yourself. You're new therefore it would help you considerably in increasing your profiency in Pro-E. And besides it's better than surfing the net for months trying to find that specific car model.
Another advantage that you'll have in designing the front end yourself would be the relative dimensions. The model you would download (if you find it!) might not be to scale or exacting in nature w.r.t. the dimensions etc.