[chewymonster]

Originally Posted by gwyllion

So the TS030 engine is already at 40% efficiency?!

That puts their statement that above 40% efficiency is a dream that nobody can achieve, into a different perspective.
source: http://www.motoring.com.au/news/2012...k-to-wrc-30907

Apparently, Toyota declared in the SAE 2011 High Efficiency IC Engines Symposium to have achieved above 42% efficiency in R&D prototypes:
source: http://www.greencarcongress.com/2011...-20110411.html

From everything I have seen 40% figure seems BS unless they are counting it different somehow. Maybe the Toyota scale goes from 5 to 105? The article clearly states that a specifically tuned gasoline engine not suitable for racing tops out at maybe 38% max efficiency as measured by the standard BSFC.