Just finished all three seasonals in less than two hours. I have to admit they were very challenging!

👍
Fiat 500
Items bought: ECU Tune, Racing Filter, Catalytic Converter, Twin Plate Clutch, Semi-Racing Flywheel, Racing Suspension
Tunes: Reduced rear toe to 0, Added 0.5 camber to all wheels, Limited Engine Power
Summary: Won this on my first try by about 0.5 seconds. Since I did not buy the racing suspension, I probably lost time climbing the hills. I only bumped into two cars at the most and I did not cut the final corner. The key here was to maintain momentum which meant applying as little brake as needed.
Lotus Elise
Items bought: ECU Tune, Racing Filter, Catalytic Converter, Twin Plate Clutch, Semi-Racing Flywheel, Racing Suspension
Tunes: Added 0.05 toe to front wheels, Reduced rear toe to 0.10, Added 0.5 camber to all wheels, Limited Engine Power
Summary: I initially had both front and rear toe to 0 and realized that I had a bit of trouble keeping the Elise in line. Consequently, I had trouble pushing the car to its limit and would up spinning out on the final lap while fighting for 3rd. That's when I started fiddling with the toe and found something that kept the rear from over-rotating on me. After two false starts, I passed 1st place at T8 and won by over a second.
Subaru Impreza
Items bought: ECU Tune, Racing Filter, Catalytic Converter, Twin Plate Clutch, Semi-Racing Flywheel, Racing Suspension, Sports Intake, Sports Exhaust Manifold, Sports Exhaust, Stage 2 Turbo, Stage 3 Weight Reduction
Tunes: Reduced rear toe to 0, Added 0.8 camber to front wheel, Added 0.5 camber to rear wheel, Limited Engine Power
Summary: Oh yeah. Lots of understeer but I was able to manage it well by letting the car roll through the corners without touching the throttle and mashing the throttle once I had the nose correctly pointed. However, the problem is that I kept catching the cars at the worst possible spots and either hit them or took an undesirable line, losing time. I came within 0.200 of beating the leader the first time and had no hesitation of giving the leader a love tap on the final corner the 2nd time.