In 1993, the quest of building a Group A Subaru Impreza WRX STI was carried out by Prodrive. The Impreza was 160 mm shorter in overall length, with a 60 mm shorter wheelbase than the Legacy RS. It featured active differentials, as well as having a more neutral front/rear weight ratio. Subaru debuted the Impreza rally car at the 1000 Lakes Rally, driven by Ari Vatanen and Markku Alén. Vatanen earned the second place with the Impreza on its debut.
In 1995, FIA mandated more restrictive air intakes in an effort to slow down the Group A WRC cars. Subaru countered this by introducing a new boxer engine with revised camshafts and a different compression ratio. In the same year, Colin McRae earned his driver's world championship in his famed Subaru Impreza 555, and Subaru won the constructor's championship in 1995's season.
“The Subaru Impreza 555 took Colin McRae to his World Rally Championship victory in 1995. With its low centre of gravity, strong boxer engine, and excellent ability to change direction, it's one of the most iconic rally cars of the 1990s.” — Car Viewer description
The Subaru Impreza WRX STI 1995 (aka Impreza 555) is a Classic car in Colin McRae DiRT
Winning an event in the Subaru Impreza 1995 with the DiRT 3 livery applied in DiRT Rally will award the player with the When Jon Met Paul achievement. The name of this achievement is a shout-out to Jon Tucker and Paul Coleman, an amateur rally driver and DiRT Rally's Chief Games Designer. Both of them took part in the 2012 RSAC Scottish Rally in a similarly liveried Impreza with Paul being the co-driver to Tucker.
The Subaru World Rally Team livery in DiRT Rally, which is the famous 555 livery on Colin McRae's 1995 Impreza was added to the game with the v1.1 update.