November 30 is the day the covers finally come off the long-awaited production versions of the respective Toyota FT-86 and Subaru BRZ concept cars, but in the lead up to the unveilings more and more details about the cars continue to emerge.

While both will share most of their body panels, a common rear-wheel drive platform, and a 2.0-liter horizontally opposed ‘boxer’ engine, it appears there will still be some major differences between two to help differentiate them in the market place.

First and foremost, Subaru’s version is now reported to be the more powerful of the two cars.

Toyota has consistently stated that its version of the car, which will spawn a version known as the FR-S for Scion in the U.S. and may even be called a Celica in Europe, will develop around 200 horsepower.

2012 Subaru BRZ coupe spy shots

2012 Subaru BRZ coupe spy shots

However, an inside source has now revealed to Autocar that Subaru’s version would develop “less than 300 horsepower” thanks to some ECU retuning, which suggests there could be more power than Toyota’s car.

Other differences are said to include unique grilles, bumpers, and interior appointments .

Further down the track we may even see a convertible version but there are currently no solid plans for such a model, only a consideration.  

Stay tuned for the Subaru and Toyota unveilings at the 2011 Tokyo Motor Show, press days for which kick off on November 30. In the meantime, click here for our complete coverage of the event.

And for full details on the Subaru BRZ, click here, and for the Toyota FT-86/Scion FRS, click here.