Most automobile enthusiasts are familiar with i-stream concept that legendary designer Gordon Murray (of the McLaren F1 fame) has been working on. It is his take on making a small city car that will seat two in comfort and will be frugal to run and maintain. For sometime now any news regarding the i-stream project has not been forthcoming but surprise of surprises, the i-stream made an appearance at the Tokyo Motor Show and that too a Yamaha car. Yamaha are calling their version Motiv. We are not very sure if Yamaha are really serious about this car, but if they are it will be an interesting entry from the world of four wheels.