If you're after something a little different for the walls, Cole & Son is always the first place to look. And if you head there now, you can check out this Cole & Son Automania wallpaper.
It's part of the new Contemporary III Collection, which re-introduces lost designs from the 1950s and 1960s. Automania is actually a 50s design, featuring illustrations of cars from the day on a background featuring a 'stylised' road.
Available now from Cole & Son directly, drop them a line for prices.