If you follow racing long enough, you'll see all sorts of innovative technology appear in race cars, and if the rule book will allow it, we get to see how that technology performs pitted against the standard fare. Next year's LeMans 24 Hours is going to see the Green GT H2, a hydrogen fuel cell powered car with twin electric motors producing 200Kw each and a combined 4000Nm or 2950 foot pounds of torque at the wheels.
This rather prodigious power will be needed because the fuel cell alone weighs 706 pounds, plus, the size of the fuel cell requires more frontal area than the usual LeMans prototype so drag will be an issue. The fuel cell requires oxygen to function which will come from compressed air supplied by twin electric turbos which gives the car a certain fighter jet sound.
Hydrogen will be carried on board in two external tanks. The 160 liter, carbon fiber and aluminum tanks are mounted on either side of the car and can be swapped in the same time as a normal fuel stop. The supply is currently good for about 30 minutes under race conditions.
I still remember the year, long ago, when Andy Granatelli showed up at Indy with his turbines and promptly showed everyone, including the skeptics, how well they could run. We've seen Tyrrell 6 wheel Formula One racers and a few years ago the Audi diesels. This year it was the delta wing. Next year we'll see the Green GT. Even if you favor the tried and true internal combustion engine in a somewhat standard configuration, you have to admit, the ever changing technology and design does keep things interesting.
Link: Green GT H2