Introducing the Reliant Kitten...

....at first, I thought someone had left a shopping trolley in the wrong place, but on closer inspection, this turned out to be a four wheeled version of the infamous three wheeler, the Reliant Robin! So here's the question; if they managed to produce one with a wheel on each corner for perfect stability, how did they mange to sell so many three wheeled ones?
Well, I suppose that's what makes the world go round, unlike said Robin Reliants which didn't go round, corners that is, they just tended to fall over.....