The 127 CLX was unveiled in mid-1981 as a limited series of SEAT's popular supermini model. Many aesthetic and equipment details distinguished it from the rest of the range, and it helped to encourage sales of the 127 before the launch of the new Fura, at the end of that same year.

Since its introduction in 1972, the original 127 had been a revolution in the automotive market and the history of SEAT. It was the pioneer of the market's B-segment, the first front-wheel drive SEAT and also the first one with rack-and-pinion steering and McPherson-type suspension, and available in 2, 3 and 4-door versions (the latter, exclusive to SEAT).

In autumn 1977 came the second generation, deeply renewed in aesthetics and interior. On the outside, the grille was new and encompassed the headlights, the bonnet was flat, the bumpers were made of plastic material and the tail lights were larger with integrated reversing lights. In addition, the tail lights lower position allowed an opening line of the tailgate also lower and more comfortable. Finally, the side windows and the rear window had a larger glass surface.

Inside, the dashboard was brand new and much more modern, and so were the seats. The engine was the well-known 903 cc, in versions of 47 HP (high compression) and 43 HP (low compression). At the beginning of the following year the 1010 cc, 52 HP engine appeared, an exclusive SEAT development, as the 1980 5-door body. The 127 2nd series trim levels were the base, C and CL, but early in 1978 a short-lived 3-door CLX version was offered, powered by the 1010 cc engine.

Finally, SEAT launched the ultimate limited edition 127 CLX at the 1981 Barcelona Motor Show, held in May. It was the penultimate SEAT with the name "CLX", which in 1978 had also been used by the exclusive 131 CLX 1800, followed in 1980 by the 131 CLX 2000 and the 5-speed Ritmo 75 CLX. Then in 1982 the new SEAT Ronda also got a CLX version. In the SEAT line-up, "CLX" stood for a special, limited-production model, with luxury trim and specific colours.

Although the new 127 CLX version was the highest in the range for aesthetics and equipment, now it was only available with the 903 cc, 43 HP engine (the high compression version had been discontinued) and 3-door bodywork in two unique metallic colours, silver and copper. The car was clearly distinguished by the "CLX" emblems on the sides of the bonnet and on the tailgate, over two thin black strips that surrounded the entire body.

Other black details enhanced the CLX image. On the sides, thick black protective bands visually joined the line of the front and rear enveloping bumpers, also black. The grille (with halogen headlights) was also completely black, as was the outer rear view mirror (inherited from the SEAT 131), the windscreen wipers (now also on the rear window) and the moulding on the bonnet air intake. The wheel rims, similar to those of the sporty Sport 1200/1430 "Bocanegra", provided the final classy touch.

Inside, the revamped dashboard from the 127 2nd series received a rev counter. The seats were upholstered in brown velvet and a carpet lined the entire floor. The CLX also had split folding rear seats, which further increased the versatility of the model.

The SEAT 127 CLX was only in production until the fall of 1981, just before the introduction of the new SEAT Fura. SEAT HISTÓRICOS keeps this 127 CLX silver-coloured unit, manufactured in September 1981 and registered in Barcelona in early 1982. This unit is therefore one of the last examples in the Collection of SEAT's first era.