This may be a silver lining - a competitor has shown that the work you have done, exactly the work you have done is worth 55 million in VC funding. There are enough people on here who can point you in the right direction, or arrange introductions. Spend at least one of those millions on PR and lawyers to ensure it's clear who has the moral high ground, and who should be hired if a company has to choose between you -…
Instead, think of the work as a means to an end, the end being revenue.
Company X was able to raise $55 million because they were able to demonstrate that the potential market could support the revenue necessary to justify such funds, and that they could use the work already done by SmartCar to get to market more quickly.
Now, in my opinion this is very shady and should be grounds for a lawsuit, but in terms of raw business savvy, the $55 million is for a smart business that knows how to execute for less. If money raised was in direct correlation to a quality product or the ability to produce such a product, rather than in direct correlation with e.g., the team (cabal?) involved and their ability to make returns for investors, then we’d be living in a very different world.