Original name: ニッサン トーン コンセプト Nissan has announced plans to build a fifth model at its award winning plant in Sunderland in the UK. Unveiled at the Paris motor show today, the show car called Tone hints at the future model which goes on sale in early 2006. A roomy five seater, Tone is aimed at parents who need a practical car in which to carry the family but who are not prepared to trade space for driving pleasure. Tone has been designed to…