1) Brain doctor 2) French neurologist 3) Georges gilles de la tourette 4) Gilles de la tourette 5) Neurologist 6) Three-wheeled motor vehicle Found on https://www.crosswordclues.com/clue/tourette
[automobile] The Tourette was a microcar by Carr Brothers (later Progress Supreme Co Ltd) of Purley, London, England between 1956 and 1958. It had a three-wheeled, rounded body that was available either in alloy on an ash frame, or in fibreglass. The car was powered by a two-stroke 197 cc Villiers engine driving through a four-speed gearbox... Found on http://en.wikipedia.org/wiki/Tourette_(automobile)