Nikola Motor, the Phoenix-based startup that wants to disrupt trucking with futuristic electric semis powered by hydrogen, says it has developed a new type of battery cell with double the energy density, only 40% of the weight and half the cost of current lithium-ion batteries used in Teslas and other consumer-market electric vehicles.

But it’s not providing many details for now, and public demonstrations won’t happen for about 10 months.

Battery packs using the new cells, which don’t use nickel, cobalt and other metals typically found in 2170 lithium-ion cells favored by Tesla, could boost range for current electric passenger cars from 300 miles per charge to as much as 600 miles with “little or no increase to battery size and weight,” the company said. Nikola has subjected its cells to heavy-duty testing and says that charging and depleting them “over 2,000 times has shown acceptable end-of-life performance.”

Chinese carmaker unveils the ‘world’s cheapest electric car,’ starting at less than $9,000.

Anyone who’s owned a vintage car can tell you—and boy, will they tell you—how much time, money, and maintenance is required to keep their baby running. And don’t forget the gasoline, garage oil puddles, or tailpipe pollution involved.

A California startup may have the answer: A plug-and-play innovative motor to convert that finicky old gas-guzzler into an electric car. Eric Hutchison and Brock Winberg first gained attention by rescuing a moldering, V-8-powered 1978 Ferrari 308—you may know it as the model that “Magnum: P.I.” drove on TV—and transforming it into an electric marvel. Now, the co-founders of Electric GT have developed a DIY, electric “crate motor” that will let traditional gearheads or EV fans do the same.

“A lot of guys go out for a weekend in a classic car that’s 40 or 50 years old, but they get a ride home with AAA; it ends up being a one-way trip,” Hutchison says. “Here, you’re taking out 95 percent of the maintenance, which is the biggest problem with classic cars. So this is for enthusiasts who love their cars, but want a fun, reliable car that’s good for 100 or 125 miles on a weekend drive.”