The Toyota NS4 is said to preview a future Prius – but not really. Although the family resemblance is there, and the NS4 is unequivocally a plug-in hybrid, the NS4 is the same size as a Prius, but is explicitly separate from the rest of the Prius range, according to Toyota corporate mouthpieces.
Toyota revealed zero in the way of mechanical details, not even specifying what kind of battery technology or powertrains would be employed. The car may even turn out to be a Lexus, since this is just a concept and not a “Toyota brand concept”. Of course it will be smaller, lighter, more efficient and have a greater range, but until this car reaches production in 2015, it’s all hot air.