I've always had a fondness for roadsters and figure someday I might end up with one, maybe as a second car.
I thought maybe Subaru was onto something with their concept car, the B9 Scrambler. They only state that it will get "remarkable" gas mileage and will be a U-LEV. Horsepower is expected to be about 140, but I don't know if that's a synergy measurement between the sequential series hybrid motor and the engine ... but what I found interesting was that it was reported that it would rely more heavily on the electric motor up to 80 km/h.
I know this is a bit old news ... they showed it at the 2003 Tokyo Auto Show.
http://www.auto123.com/en/info/news/roadte...rtid=18225&pg=2
http://www.subaru-global.com/topics/ms/tms2003/b9.html
http://www.edmunds.com/news/autoshows/arti...43/page009.html