I won this with my on-level Bob driving a Lightning.
Weight Reduction Stage 3
Window Weight Reduction
ECU
Engine Tuning Stage 2
Sports Air Filter
Catalytic Converter: Sports
Titanium Racing Exhaust
Supercharger
Single Plate Clutch
Sports Flywheel
Fixed Sports suspension
Sports: Hard tires
591 HP 625 after a desperately needed oil change. (It was at 591 for the race)
This is a somewhat motley crew of tuning parts but I believe that it's the first car that I actually needed to tune to win a race and the upgrades were dictated by the amount of credits I had.
I needed just a couple hundred XP for the next B-Spec level, so I just reran it with my lowest level driver. He's level 20, so admittedly a good bit higher than many folks will be running this race. He won going away, uncoached. The rest of the field pretty much stayed in a pack, finished 15 - 20 seconds behind. A pair of Toyota's and a pair of SSR's took the next 4 spots with the rest of the models pretty randomly spread.
I don't remember this race being
overly difficult. I think I maya had to run it a time or two in order to gold it, but I think that just pretty standard coaching got Bob through when he was on-level.
Of course, I selected my first Bob to have the best braking skills as I could, so maybe that helped him a bit when he was on-level. Overbraking in these heavy beasts can kill any speed you've got and they're awful slow to gain that speed back.