I heard not sure about it, Tomasetto achille Argentina if purchased from authorized dealer performs very well then landi renzo but the main problem is there workshops are very few and only in main cities, have spare and maintenance issue, otherwise they perform better !
I had used "Tartereni" ( may spelled wrong ) in my ex ride, it performs million times better then any landi renzo i had in other cars, mileage and pick is amazingly gud as comparing to petrol but the only drawback is spares !