They tested this at Sywell just on the other side of town from me Dulan. There's a good documentry on youtube with the first generation one on it.
The principle is much more simple than you'd expect. From what I remember it works because the weight (and/or lack of it) that is upfront is focused very much in the center so there is next to zero body roll which inturn means it does not require a wide wheel base in that area. The vast majority of the cars weight ie engine, gearbox and driver is located between the rear tyres meaning they just have the job of combating typical oversteer. The front anti roll bar for instance is literally the thickness of a pencil and the spring/damper units are also tiny. This is because they don't need to fight the typical weight transfer from the inside to outside wheels during the direction change of a corner. In basic terms, the tyres and steering need to do alot less work to change direction.
It would be easy to think it would drive like a Reliant Robin but they have all thier weight outside of the front wheel base. I'll try and dig out the science behind the car Dulan. Its hard to explain but like I say, it is much more simple than you'd imagine.
