BritishBanger,
What happened to your engine? Did it overheat?
I had a similar experience with a new motorcycle once. Except, the dealership took all their tools and locked the doors.
My three month old Yamaha (with a siezed engine) was locked inside. I had to wait 30 days for the Sheriff to enter before I could get it out of there. Then, we brought it to another dealership.
Six months after that, they were still waiting for parts. It was just a heap of parts in the corner of the garage.
It was so frustrating, I decided to trade it on a new Honda.
I guess I posted this to say "it could be worse." I hope you get your SVT back soon.