Can definitely recommend the Mitsubishi GTO Twin Turbo, just managed a sub-27 minute (barely) run in it:
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My setup is about having the fuel efficiency to enable a no-stop with only a very minor compromise on straight line speed
, all whilst staying on fuel map 1. It can be a bit understeery but it is very stable. The AI outpaces the Twin Turbo a bit down the main straight (except for Gallo and Suswillo who seem to go like rockets), but it is easily more than made back through the twisty parts and the lack of a pit stop.
Very heavy short shifting and coasting are needed throughout the race, but I was still doing 2:12-2:13s throughout after the first couple of laps in traffic. The front tyres will be pretty worn by the end as well, so the last couple of laps need to be fairly gentle to avoid hitting the walls. The AI should be nowhere in sight by this point though (unless on pace for a low 27 minute or better, in which case P16 will get blue flagged on lap 11 or 12).
To save enough fuel, its necessary to shift up shortly after the RPM bar starts to increase. The goal is to keep that bar empty 99% of the time. In terms of coasting, I'd lift off at the following places:
- The set of overhead signs before the 200m board heading into turn 1.
- When entering sector 3, then coast all the way to the tighter left-right chicane under the bridge.
- Approaching the bridge with the blue banner, then coast around the right-hander.
- After a short burst of power coming out of the right-hander, lift off at the 100m board and coast around the left-hander heading towards the off-ramp.
- Lift off shortly before the 200m board heading towards the hairpin and coast in a short distance before braking.
My understanding of tuning isn't fantastic, but I think that with the settings I'm using, the car is around the optimal power/torque range keeping the RPM bar just below where it starts to fill. Therefore there shouldn't be any appreciable loss whilst also being very fuel efficient. When using the internal view, the dials on the dashboard show ~5-6k RPM.
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Note - The car also has all aero parts and a widebody with wide tyres.