Logic, in this case, pointed to the 1.9 litre engine due to the presentation of Stark two years ago, at São Paulo Motor Show, in which a 1.8-litre flexible engine from VW was used in the car. According to Adolfo Cesar dos Santos, president of TAC, this engines was proposed at the time because available diesel engines were too heavy and because legislation is getting tougher on emissions, such as Euro 4 and Euro 5.
Since TAC volumes will not the very high (they will top 100 units per month in three years), and the new S23 engine will be mass-produced to up to 20,000 units. In order to make sense, this engine will not be used solely on Stark, but also for Fiat products, such as its version of Campagnola and Massif, sold in Europe under the Iveco brand.
Source: TAC and FPT