Quite understandable since we're talking about a rumor, technical details are still unavailable. However, it looks like it will be based on the FT-HS Hybrid Sports car that was rolled out in 2007. 7tune.com writes that it will be powered by the Lexus 450h engine, namely 3.5-liter V6 powerplant. Additionally, it could be connected to Toyota Crown's hybrid system, raising the total output to approximately 400 horsepower.
However, the sports car won't be totally "green" as the manufacturer is also planning a sportier version that would likely incorporate a gasoline engine with no hybrid components. Details are, as we said, fairly inexistent but, according to the aforementioned source, a full preview is expected to be revealed at this year's Tokyo Motor Show.
The FT-HS Hybrid Sports car was initially projected to arrive this year but, due to the economic recession and its violent repercussions on the auto sector, the Japanese manufacturer decided to put the project on hold.
We're still waiting for some sort of confirmation or at least, for an official hint that Toyota is indeed planning a Supra successor so keep an eye on the news as we're getting closer to the grand opening of the Tokyo Motor Show.