Henrik Fisker, the storied car designer who has shaped Aston Martins, Fords and BMWs, told the Reuters Autos Summit this week that he now wants a starring role in the green revolution.

But he also wants to make the world safe for sports cars for generations to come.

“Being a car enthusiast and loving cars, to be quite honest, I could not imagine a life without a beautiful, fast sports car,” Fisker said. “I needed to do something to make sure that I could drive one of those nice cars, my children could drive one of those beautiful, fast cars.”

So what was Fisker’s inspiration? What was the epiphany when he realized that the world was ready for the upcoming Fisker Karma, a $90,000 plug-in hybrid with 50 miles of all-electric fun?

Leonardo DiCaprio…in a Prius.

“A couple of years ago it started, by people who were maybe a little ahead of their time. You saw some movie starts like Leonardo DiCaprio buying a Prius.

“He could have bought any car in the world, and I remember seeing that on television and thinking to myself, you know, when you’ve got a guy who could buy any Ferrari or Rolls Royce and he’s buying a Prius, you know something is changing dramatically.”

(Henrik Fisker photo by Rebecca Cook of Reuters; Leonardo DiCaprio photo by Mario Anzuoni of Reuters.)

Would you buy a car that only goes 100 miles (160 km) on a tank of fuel?

That’s the range of Nissan’s 5-seater electric car planned for sale in the U.S. and Japan in 2010 – a similar size to Nissan’s Primera or VW’s Golf.

A full tank in a petrol-driven car will take you around twice that distance so the new technology that Nissan hopes will leapfrog current hybrids won’t be for those who disappear up the mountains each weekend.

But 90 percent of car users drive less than 100 miles each day, says Andy Palmer, Nissan’s senior vice president and head of product planning.  So if you’re OK with a town or city run-around, you can plug it in to recharge once you get home.

And future generations will have more range, Palmer told the Reuters Japan Investment Summit, as battery technology improves.

Nissan has the car under wraps until it unveils a final prototype on August 2. Palmer says driving it is quite a surprise — with torque akin to a 2-litre gasoline engine and acceleration with zero noise.

But lack of noise has itself become an issue. If other drivers and pedestrians can’t hear you coming, how can they stay out of the way?

That, Palmer says, is relatively straighforward to fix.

“Starting with zero noise, it’s very easy to add noise. Normally automotive engineers have the opposite problem.”

Annoying beeps are probably out, so what would you like your new electric car to sound like?

Photo credits: REUTERS/Gil Cohen Magen and REUTERS/Kim Kyung-Hoon