I have followed the development of this car on and off for a few years now.
The BBC has regularly covered the story.
Every time there is a report on the car the reporters are never allowed to actually drive or demo the car with the claimed speed/performance characteristics
The next development is always 'just about to happen' this me reminds of the Australian Split Cycle engine operation of the 90's.
Despite whatever is being claimed about these developments the numbers do not add up. This car is actually behind many cars already on the road as far as claiming the X-prize is concerned!
The same story nearly eight years ago:-
http://news.bbc.co.uk/1/hi/world/africa/988265.stm http://www.splitcycle.com.au/failure.html