The electric cars
Oil prices are going up and up, people are worried about climate change, and hybrid cars, part electric and part petrol, are starting to make an impact.
But they still have emissions and dependent on oil. So whatever happened to the all-electric car?
One small Silicon Valley start-up is finally putting some fizz into electrics.
The Tesla Roadster has a good pedigree. Its ultra-light carbonfibre body is designed by Lotus, based on the Elise. And thanks to new battery technology it can go three times as far as the EV1.
“The technology has evolved a great deal,” said Mr Rippel. “When we did the EV1 all we had to work with were lead acid batteries. Now we have lithium batteries, and they are evolving and getting better with time.”
The car is powered by ordinary lithium ion batteries, exactly the same kind you would find in laptops or smart phones. However, it needs 7,000 of them, all put into a large battery case, which makes up a third of the car’s total weight.
The Roadster is incredibly simple. It has 12 moving parts. It needs no oil change, filters, spark plugs or clutch. Plug it in overnight and you are ready to go again in the morning.
Electric engines do not wind up the power like combustion engine do. You get 100 percent of the torque from the second you touch the pedal. For the Roadster that means 0 to 60mph (100km/h) in four seconds.
Inside, the car has been stripped down to bare essentials. Two gears take you from 0 to 65 and then on to 130mph (210km/h).
There is good and bad news for your wallet. On the good side the electricity costs about two cents per mile. That’s about 1/10th of the cost of petrol in the US, and 1/20th in Europe.
But the super savings from this supercar come with a super price tag - $98,000 (£49,000).