Just watched this movie tonight and I give it an 8.5 /
10!!
Initial D is a race-car movie with a difference - it focuses on the
Drifting technique that's engaged by racers when they round a bend.
No fancy sports cars here, unlike your 'typical' racing movies, but
I liked how they made the lead drive a pretty 'normal' car used for
tofu deliveries to race.
I've not read the manga and I'm wondering how closely the movie
stuck to the actual storyline in the manga. Anyone can enlighten
me? 
It was comical, light-hearted, the music was appropriate for
portraying the mood and setting the pace, the racing skills were
wow and there were parts where you there was so much action and
suspense!
Best of all, the lead and his girlfriend had a pretty atypical
ending, which I think added depth to the show.
Overall, a really enjoyable movie! (But then again, I love to watch
movies featuring sports cars, races, etc. 
