Darn, you beat me to it. Our Insight engine has actually won its category (sub 1 litre) six times - since 1999.
Honda also won the 2 to 2.5 litre category with the 2.2 diesel engine. Check out all the categories here:
http://www.channel4.com/4car/news/news- ... s_id=12370
(P.S. The news section on this website has plenty of references to hybrids and fuel efficient vehicles to come, including a hybrid Camry to be built in the US etc)