"As our Rebel F-1 prototype just happened to swing by HK for a technical meeting,
we figured why not test it out at this race.
Penny Yip TQ'd and won the F-1 class followed by Frank Ng.
We are refining its design after this race.
Based on final testing in Japan, we'll release it for production.
We'll disclose the 3D drawings once the final design is confirmed."
It seems they are re-evaluating final design.