A very similar thing happened to my sister a few yeras ago. Pulling very slowly out of a junction (parked cars either side), this chap came up over the brow of the hill at speed (well in excess of the 30mph limit), couldn't stop in the distance he could see ahead, and skidded into her car.
My sister was found to be at fault for pulling out of the junction, despite being the careful and considerate driver Apparently the other vehicle speed doesn't really come into it!
The only possible way for the outcome to be different is if you hade been stationary from the time the other car came into view until the time of impact, or the police can successfully charge the other driver with dangerous/reckless driving. Otherwise the best you could hope for would be a knock for knock claim. If you are fully comp, then you'll get your costs covered anyway, though you'll pay for it for the next 5 years in terms of increased insurance premiums
Hope it all works out OK for you.
John