The Reliant Rialto is a three-wheeled, subcompactcar that was manufactured by Reliant Motor Company, replacing the original Reliant Robin in 1981. The Rialto was discontinued in 1998 while production of a new Robin model, introduced in 1989, continued. The Rialto was made in three different body types: saloon, estate and panel van. With a galvanised chassis and a fibreglass body, the Rialto was very resistant to corrosion. It was powered by Reliant's 850 cc aluminium water-cooled engine and, with the improved aerodynamics of the new body style, was a much more stable vehicle at speed. New to the Rialto was the single windscreen wiper, centrally located to clear the whole screen.In order to comply with type approval, there were many carry over components from the original Robin, including windscreen glass, complete door assemblies, bonnet and details. The Rialto is what is termed in industry terms as a 'Heavy Facelift' of the original Robin. Notably, due to type approval laws, all subsequent Robins were also light or heavy facelifts of the preceding model, with a direct lineage traceable to the first Robin.