0:00 - start
3:45 - Final GP Race 1
28:57 - Final GP Race 2
34:22 - Final GP Race 3
52:12 - Final GP Race 4
1:19:05 - ending
1:21:37 - credits
1:26:06 - Garage mode (unlocked)
1:29:01 - Time Attack mode (all tracks now unlocked)
1:29:46 - Grand Prix mode (ITA/ITA) - abortive
1:39:12 - Time Attack (Helter Skelter)
Of the four "Final GP" races, three had pretty cool tracks, and two turned out to be pretty easy--including the final track, where even in my (maybe? in the first half of Gran Prix, I seemed to qualify for only the weakest upgrades) sub-optimal car, which could now not drift easily (braking while turning would no longer kick into a drift, only letting off gas and then hitting gas again would, which was super-awkward), all I had to do to win, it turned out, was hold down the pedal, shift up to top gear, and steer lazily around the course. Kind of a let-down for the final race!!
And while that unlocks "Garage" mode, where you can change car colors and apply 1 (?) decal, or something, and you also now have all eight tracks available in Time Attack mode, Grand Prix mode is exactly the same if you replay it, and I have no urge to replay with different cars.
So for me, a fun but kind of short game--I guess it may be best to think of it as a longish arcade game. : D Those first seven races are pretty fun!
It's looking as though Crazy Taxi might be my actual Gran Turismo, though. = o