 The smaller-engined petrol and diesel units offered impressive refinement, with more powerful and high-performing variants expected later.The new R25 is officially the most aerodynamic car in the world, giving it excellent ride and handling to match even the most prestigious of its rivals from the likes of BMW and Mercedes-Benz.Renault's other big launch of 1984 is Europe's first MPV, the Espace, originally meant to be launched as a Talbot but became a Renault instead.