The Facel Vega Facellia (Type FA ; in French also the Facellia) was a sporty car that the French automobile manufacturer Facel SA built from 1960 to 1963. It was designed to compete with models from Alfa Romeo or Porsche . However, the Facellia suffered from quality problems and ruined the reputation of the brand, which had to cease operations in 1964

In 1960, Facel entered the sports car market with the Facellia, with a premiere at the Paris Motor Show in 1959. It was a small car similar in size to the then popular Mercedes 190SL. Facellias were advertised in three body styles: cabriolet, 2+2 coupé and 4-seat coupé — all with the same mechanical parts and a 2,450 mm (96.5 in) wheelbase. Styling was similar to the Facel HK500, but with rather elegant (though fingernail-breaking) flush door handles. Following Facel Vega's demise several of M. Daninos's styling cues were "borrowed" by Mercedes-Benz. Prices were roughly US$4,000 for the Facellia ($39,568 in 2022 dollars), US$5,500 for the Facel III ($49,460 in 2022 dollars) and US$6,000 for the Facel 6 ($59,352 in 2022 dollars).

With the idea of creating a mass-produced all-French sports car competing with the Alfa Romeo Giulietta, the Triumph TR3 and Porsche 356B, Facel moved away from Chrysler engines because Chrysler didn't offer a four-cylinder engine at the time. Instead, the Facellia had a four-cylinder 1.6 L twin-cam engine designed by former Talbot-Lago chief engineer Carlo Machetti, who won at Le Mans, along with the advice of famed English cylinder-head guru Harry Weslake, and built in France by Paul Cavallier of the Pont-à-Mousson company (which already provided manual gear boxes for the company's larger models) so as to be compliant with the punitive French horsepower tax system and increase sales. The engine had only two bearings supporting each camshaft, using special steels, as opposed to the usual four or five. Despite the metallurgical experience of Pont-à-Mousson, this resulted in excessive flex, timing problems, and frequent engine failures.

Famed engineers Charles Deutsch and Jean Bertin were called in to solve the issues, but it was not enough and the engine was pronounced a disaster and the Facellia with it. The updated Facellia F2 was presented at the March 1961 Geneva Motor Show. Company president, Jean Daninos having been obliged to resign in August 1961 in response to the company's financial problems, the new boss, a former oil company executive called André Belin, gave strict instructions to the after-sales department to respond to customer complaints about broken Facellia engines by replacing the units free of charge without creating "difficulties". The strategy was intended to restore confidence among the company's customer base. It would certainly have created a large hole in the income statement under the "warranty costs" heading, but it may have been too late for customer confidence.

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