"I noticed that that Boeing 1 man helicopter contest has announced the winner. Bit like a flying motorcycle."
It is not the final winner.
The final "Fly-Off" was initially scheduled for the September 2019, now it is postponed for the February of 2020. And, by then, who knows.
As far as I know, the so-far winners, ten for the Phase-I (20,000U$ each) and five for the Phase-II (50,000$ each), all are battery powered.
The existing battery technology cannot yet meet the initial rules of the BOEING-GoFly competition:
"Design and build a safe, quiet, ultra-compact, near-VTOL personal flying device capable of flying 20 miles while carrying a single person."
They already changed their own rules, which is not only unfair, it is illegal, too.
BOEING should be ashamed for it, as well as for the lack of transparency of their contest
By the way, the 20 miles is already a very short distance for a useful Flying Machine.
In any case, only the future will prove who is right and who is wrong.