Hi Lee
Depending on whether you want a shooting brake or coupe, you can go on the Mercedes Benz website and see what they have in stock only premiums in shooting brake but a few coupés in premium plus. This is how I ordered mine and had the car in a week! Found some in Dartford, Grimsby, Epsom and Bolton, three different colours grey, red and black.
It’s worth a look if you don’t want to wait.