The appeal of a biopic lies in the fact you want to know about the person it depicts. I'm a massive car nut, not necessarily Ferrari, but I still want to know about him because he sure was a carismatic figure. What I don't get is why every filmmaker today thinks the first thing they need to show us about a person is his sex life.
Another problem with biopics is you have about two hours and you need to pick a part of your topics life to show the viewer. Again, your choice falls to the problems resulting from his liasons. The movie opens with the explanation how Enzo and Laura built Ferrari in 1947 out of the rubbles of WWII. Then you jump 10 years forward to the point where they already are in financial trouble. I would have much rather watched how they built it.
Now, the racing scenes were ok. But they have done it much better decades before. The accident at the Mille was a real shocking, though. The violence shown in those pictures are in contrast to the rest of the movie, which was rather soft.
Acting was decent althought I agree the accents were too thick. Let everyone speak normal englisch, that way the viewer can assume they speak Italian but it's translated for us. Doing it like this gives the impression that everyone in Italy speaks accented english. Minor detail maybe, but it really felt cliched.
Overall an OK movie but if I'm honest I wouldn't recommended it to someone who wants to know about Ferrari. And for a casual viewer it's too generic. Could have been a fictional story altogether.