[quote=
--> My ideal HAH would be a 3-cylinder car that happened to have 3 more available for those few times you actually need >100HP. Instead of sometimes going down to 3, the system would be biased towards 3 as the normal state and 6 as the "assist" state, even at startup from a stop. The same overall performance if you want to use it, but the 'preferred' condition would be more efficient.[/QUOTE]

I love this idea, unfortunately I don't think this has been done because the issue would be the 3 cyl that are used for the extra 100hp would wear at a different rate than the normal 3 cylinders.

2005 Accord Hybrid 15.65@89.91mph

2003 Lancer Evolution VIII (Sold) 287whp/283tq