These paper cars are Lancia Rally 037 (aka Lancia Abarth #037), a mid-engine rally car built by Lancia in the early 1980s purely for the FIA Group B World Rally Championship, the paper model was created by oniya. Driven by Markku Alén, Attilio Bettega, and Walter Röhrl, the car won Lancia the manufacturers' world championship in the 1983 season. It is the last rear-wheel drive car to win the WRC.
For approval in group B it was necessary to build at least 200 road versions of the model in question. The road version had an Abarth developed 16-valve four-cylinder in-line 2000 cc engine, with a volumex supercharger which developed 205 hp (153 kW) capable of pushing the 037 to over 220 km/h (137 mph) and it reaches 100 km/h (62 mph) from a standstill in less than seven seconds.
Unlike its predecessor, the V6-powered Lancia Stratos, the first 037s had a 2.0 liter 4-cylinder supercharged engine. Based on the long stroke twin cam which powered earlier Fiat Abarth 131 rally cars, the four valve head was carried over from the 131 Abarth but the original two carburetors were replaced by a single large Weber carburetor in early models and later with fuel injection. It features a ZF transaxle.
Lancia also chose a supercharger over a turbocharger to eliminate turbo lag and improve throttle response. Initially power was quoted at 265 hp (198 kW) but with the introduction of the Evolution 1 model power jumped to 300 with the help of water injection. The final Evolution 2 model produced 325 hp (242 kW) thanks to a displacement increase to 2,111 cc.
The Lancia 037 was a silhouette racer; while it was loosely based on the Lancia Montecarlo road car, they shared only the center section with all body panels and mechanical parts being significantly different. Steel subframes were used fore and aft of the production car center section, while most of the body panels were made from Kevlar.
The mid-engined layout of the Montecarlo was retained, but the engine was turned 90 degrees from a transverse position to a longitudinal position. This allowed greater freedom in the design of the suspension and while moving engine weight forward.
An independent double wishbone suspension was used on both the front and rear axles, with dual shock absorbers in the rear in order to cope with the stresses of high speed off road driving. The 037 is notable as it retained the rear-wheel drive layout that was nearly universal for rally cars of the pre-Group B period; nearly all subsequent successful rally cars used four-wheel drive, making the 037 the last of its kind. [Source: wiki]
You can download the templates here: Lancia Rally 037 Paper Car Free Paper Models Download