This SD paper car is a Alfa Romeo 155 model, the papercraft is desgiend by prara. There is another Alfa Romeo paper model 156 here: Alfa Romeo 156 free papercraft download. The Alfa Romeo 155 is a compact executive car produced under the Italian Alfa Romeo marque between 1992 and 1998. It was released in January 1992 in Barcelona and the first Motorshow launch was Geneva Motor Show in March 1992. It was built 192.618 units.
The 155 was initially released with 1.7 L Twin Spark, 1.8 L Twin Spark, and 2.0 L Twin Spark petrol engines, the latter two with variable valve timing. The 1.7 L was not sold in the United Kingdom.
Two four-cylinder turbocharged diesel engines, of 1.9 L (92 PS (68 kW; 91 hp)) and 2.5 L (125 PS (92 kW; 123 hp)) were available in some markets, but again not the UK.
At the top of the 155 range were the 2.5 L V6, using a (166 PS (122 kW; 164 hp)) engine derived from the 3.0 L V6 used in the larger Alfa Romeo 164, and the Q4 which used a drivetrain derived from the Lancia Delta Integrale which meant a 190 PS (140 kW; 190 hp) 2.0 L 16V turbocharged engine and permanent four-wheel drive. The Q4 also incorporated three differential gears. Both the 2.5 V6 and Q4 models were also available with electronically adjustable suspension with two damper settings.
The most notable special edition was the "Silverstone" edition released in the UK which was known as the "Formula" in Europe: this was released as a homologation exercise to allow Alfa Romeo to compete in the British Touring Car Championship race series and consequently came with a bolt-on aero-kit consisting of an adjustable rear spoiler and extendible front air splitter.
The Silverstone was a lighter but no more powerful version of the 1.8 L, even though the race car it was homologating had a 2.0 L engine. This anomaly came about because the 1.8 L engine block, with its narrower bore, allowed Alfa to use a longer stroke on the racing car and stay within the 2.0 L capacity limit.