My run on Mission 12.
I've yet to beat mission 11, so I went on to give mission 12 a go.
I was surprised to see such a transition from 11 to 12, going from the 2000 to the ford gt.
What a run this was, I found it easy to learn the braking points mostly because I always slam on the brakes very late every turn. It took me probably over 15 tries (not all of them finished) to beat the Viper. I pulled in front of him on the final turn by passing him RIGHT before it, braking late on the inside of the turn, and then just staying in front of him.
Turn 1 (2?) (Andretti hairpin). I always brake late enough on this turn (slamming on the brakes) so that you're still braking by the time you're in the middle of the two tiny sharp corners, then I just plant the gas, touch the clipping point and then stay to the outside so I can prepare for turn 4.
Turn 3 is the right you take after turn 1 (or 2 if you count turn 1 as the open wide left after the starting line). This I brake fairly late also so that you're still braking into the turn (but BARELY) then accelerating through the clipping point and then slowly widen into the left of the track, preparing you for turn 4.
Turn 4. This one isn't nearly as sharp as 3. This one I normally gasit just until you have to turn sharp and then just press on the brakes 50%-80% depending on where you started to brake. Not much braking is needed here and you can use the whole inside of the corner to accel through, slowly making your way to the left side of the track. No need to go all the way on that side of the track, since you'll need to prepare for your next turn.
Turn 5. You're braking light suggestor, thing, will tell you to hit 2nd gear. I did as it said the first 10 or so tries, then instead I tried just hitting 3rd gear (because I wasn't even in 2nd gear for very long, so going into 2nd gear waisted more time because of the shifting). Stay on the outside, brake late, then kind of jerk it left so that you're clipping point is on the rumble strip, then slowly make your way wide to take advantage of all the track you can going to the right side of the track.
Turn 6 had me confused on where to brake for a long time. On this turn I'm used to not even braking and just gunning it around, but you really can't in this car. What I did was I surprisingly hit the brakes early, so that I could accel through the turn (on lap one you should be right behind the 5th place car at this point). Take advantages of all the track you can, use the clipping point, and be careful not to touch the dirt, I've found it easy to accidentally spin out of control here if not done correctly.
Turn 7 and 8 (The Corkscrew!). This is a lot easier when you've passed the car in front of you before hand (should happen on lap 1 and 2). Once you've passed your car around here, take the line on the road that looks like where everyone else has slammed on the brakes (the dark part of the road). Hit the brakes hard as soon as the light comes on. You'll have to learn where to turn when braking and how to get to the outside quickly before turn 8. Once you've passed turn 8 you should be going down hill and slamming the gas (this takes a bit of steering skill, so that you don't touch the dirt and spin out of control). make your way to the right side of the track quickly so that you can take turn 9 correctly.
Turn 9 is a wide turn at first. Stay more to the outside for the first half of the turn, then charge inward hitting the clipping pint on the exit (rumble strip) then go wide, slowly making your way to the outside (the right saide) of the track, then set yourself up for turn 10.
Turn 10, at the beginning stay to the left side of the track, brake early while turning into the corner a bit, and then gas it while turning into andout of the apex.
Turn 11. This is most likely where you'll go head to head with the 1st place Viper. If you're not going agsint someone here (most likely a second or so behind them), brake late on the outside, almost to a crawl, then burst through the apex (brake so that you can start to gas it before you have to jerk the car left, so that you're accelerating through the turn as much as possible, slow in, fast out). If you have someone to deal with during this turn, just stay to the left of them, brake later then them, and then make sure you stay to the inside of the their turn so you can burst out in front.
Hope this helps. My first few laps were all 7+ seconds behind the viper, sometimes in 3rd or 4th place at the end. All this mission takes is learning how to deal with braking points and the AI drivers (I was really close to winning once withone 5scd penalty).
Go get that viper!