This is the famous Rolls Royce Silver Ghost. The model is based off of the official model, built at about half the size. The vehicle is 5 studs wide, and WAS created in real life in both green and white.
Wow, that's an amazing rendition of the Classic Red, which I've yet to make a page for. I'm just waiting on a render and it'll have its own page. I'm honored you liked my design enough to make one!