Looks like the following happened:
1. Tried upgrading the already highly optimised car, found that it needed serious money to do.
2. Somehow got agreement to build it
3. Then realised that the price was well above an RS/RB etc and that sales numbers would be ludicrously low
4. Panicked, at the probable loses.
5. Decided to offset some of the development costs by charging a LOT more, then sell bugger all of them
I can't help but think that stuffing a low pressure FI kit on it would have been far more cost effective.