Shortly after their introduction, it soon became quite clear that the Renault 20 was too underpowered to cope with the overall size and weight of the car and that the Renault 30 was seen as too expensive for what was effectively the same car.
Задние тормоза Renault 20 были барабанными, колёсные диски - меньшими, 13-дюймовыми, а модификаций было три - базовая L, более престижная TL и топовая GTL, по оснащению в целом идентичная модели Renault 30 TS.