My Ford Kuga build date keeps being pushed back - what are my rights to cancel the order?

I've waited 20 weeks on a Ford Kuga. The latest (of six) build date I've been given will mean that from order to delivery would be approx 29 weeks. What are the rights for cancelling?

Delayed Audi A3 order - where do I stand?

On the 22nd September 2015 I ordered a new Audi A3 Sportback 1.4 TFSI. I was assured by the dealership that the car would arrive either before Christmas or the first week in January. I was told last week...