The ADEFA website does have information on sales, disaggregated by company, market (internal/export), and for very year since 1959. For example:
This data is here. Disaggregation by company and market is here.
ADEFA does not provide data on profits thought. As you can see from the latter link, all companies are multinationals with subsidiaries in Argentina (e.g. Toyota Argentina S.A. where "S.A." stands for Sociedad Anónima, meaning PLC). As such, they provide annual statements to the local tax authorities, including profits. They should also publish annual reports to their investors (e.g. Toyota 2014 here; see profits in page 8). And official government organisations also make these statement public (e.g. here). In other words, all the data must be available online. You just need to google something like "name of company memoria anual 20XX", where memoria anual stands for annual financial report, for year 20XX.
Whether the data is systematically available free of charge, I doubt it. Normally consultancy companies, investment banks and other financial firms produce compilations and analysis of this data for their clients (know this from first hand, when worked at Deutsche Bank). Unless you have access to one of those, you will have to compile the data yourself. At least there are just a few car companies, so this should not take you long.
PS: beware of over/under reported utilities due to transfer pricing though.