Take a look at the smallest, most beautifully formed Audi ever. Auto Express has learned that the German firm is planning a new city car – and it will be based on VW’s ultra-economical micro-machine, the up!The new baby blends fuel economy and style never seen before from Audi. It will share nearly all its underpinnings with the VW, while maintaining the badge appeal and executive air that buyers have come to expect from the four-ringed brand.Bosses had previously hinted at the possibility of a small car, and speculation suggested it would be based on the same platform as the A1 concept, first revealed at the Geneva Motor Show in March.