To indicate the beautifully balanced strength ration of one meter hp to one kg of mass, the term is meant to be pronounced as "one-to-one" (or 986bhp per tonne).

That is when the E85 ethanol that is widely available in Sweden is being used to power the the double 5.0-litre V8 engine.

The production is just 1160 horsepower when using standard super-unleaded, as we use now, but it still works out to 852 bhp per tonne.

A range of active systems can also be modified corner by curve on routes that the car has learnt or that are downloaded using its integrated 3G data connection thanks to GPS sensors.

Rain is still falling, and on the slick runway, the One:1's engine and stability control system engage in what resembles open combat.

 the engine sputtering as the enormous 345/30 R20 Dunlop Sport Pilot tires at the back struggle for traction.

The runway suddenly suddenly approaches sideways, and the pilot is furiously winding on the opposite lock.

Fortunately, we only come upon damp grass as we mow a 50-yard path off the airstrip and come to a stop. Nervous laughing can be heard throughout the cabin.

The vehicle is not at fault. Even all of that downforce couldn't save us from aquaplaning, as can be seen upon returning to the point where the spin began and looking down the runway at deeply pooled water

The seating arrangement for the driver is close quarters, with nearly every surface being constructed of carbon fiber or coated in Alcantara.

Before you enter the boost zone, there is a good deal of torque and the engine is tractable.

The automatic gearbox features a single "drive" gear and a second clutch that serves as a brake to speed up high-speed upshifts, but while moving slowly

Although the stability control does a good job of keeping everything in line, I am aware that I am only experiencing a small portion of the One:1's performance.