Renault Twingo of their existing partnership, announced "Project Edison", a collaboration aimed at conceiving a shared platform for small city cars to be shared by both companies. The first cars using the platform were the third generation Twingo and the second generation Smart Forfour. Renault and Daimler invested equally during the research and development phase, with Renault subsequently specializing in the engines and Daimler in transmissions. Both companies tried to ensure a distinctive design. Renault designers took inspiration from the Renault 5. and the first generation Twingo, The car was originally launched with four colour options, as with the original Twingo. The
Alvis Car and Engineering Company with aluminium pistons and pressure lubrication, which was unusual for that time. The first car model using de Freville's engine was the Alvis 10/30. It was an instant success and established the reputation for quality workmanship and superior performance for which the company was to become famous. The original 10/30 side-valve engine was improved, becoming by 1923 the overhead valve Alvis 12/50, a highly successful sports car that was produced until 1932. Around 700 of the 12/50 models and 120 of the later Alvis 12/60 models survive today. 1927 saw the introduction of the six-cylinder Alvis 14.75 and this engine