I'm surprised of the negative reactions to this film... I guess some of you haven't seen "Lamborghini - The Man Behind the Legend"! (spoiler: don't)
As someone who remembers when this WRC season happened and followed it, I also had the advantage of being able to watch Race for Glory in the original Italian. The acting is so-so, some of the dialogue clichéd, but the racing scenes are in my opinion better than average.
One surprise was, despite a glaring misstep with the homologation officers counting Beta Montecarlos instead of Rally 037s and not even noticing, there was some attention to detail, such as Fiorio driving around in a period-correct high spec Lancia Gamma and the FIAT politics at the time. There's even a cameo many will not notice: in the fleeting scene where you see the "Avvocato" Gianni Agnelli face on, the uncredited actor is actually Agnelli's grandson Lapo Elkann.
The movie is not so much about racing as of the figure of Cesare Fiorio. Seen in this context, it's a pretty good movie that even my wife enjoyed. Just remember, it's not a documentary and doesn't intend to be.