For next week, "So easy a caveman can race it" spec car race, choose any of the following, they are all general purpose builds and should be comparable to each other on all tracks, even though they drive differently.
A850 2002 Nissan Skyline GT-R V-Spec II (R34)
Good all around car, if you don't have time to try the others, build this one.
Engine: Stock powertrain, Sport Exhaust, Sport Intercooler
Handling: Race everything, race weight reduction
Tires: Yoko Race compound, Max width, Max Rim Size, Any max weight reduction wheels (Volk CE28N, TE37, Work Equip 03, Enkei RP F1, etc)
Areo: Forza front bumper rear bumper and wing, any aftermarket sideskirt, top secret hood.
Tuning for the R34:
Tires: Front 28 Rear 29
Gears: Stock ratio, 3.92 final drive.
Alignment: camber f -0.8 r -1.1, zero toe in and out, 4.7 front caster
ARB: f 10 r 40
Spring: f 313 r 328, 6.5 in ride height front and rear
Damping: rebound f 14.8 r 17.6 bump f 2.4 r 3.5
Areo: max front and rear
Breaking: 48% front. break pressure up to you
Diff: for traction off, f 25%, 0% r 30%, 0% center 25%/75%
for traction on, you shouldn't need traction on this car, if you have to have it, maybe add 10~20% to front and rear.
A850 1998 Subaru 22B Sti
Good short track car, lacking top speed but it makes up for it with consistency and recoverability
Engine: Stock drive train, Race exhaust, Race ignition, sport fuel
Handling: Sport Brakes, Race spring, race ARB, Race transmission, Race clutch, stock flywheel, stock driveline, Race diff, Max reduction
Tire: Kumho race compound, max tire width, max rim size, stock rim style
Areo: Forza Front bumper, Forza rear wing, any non forza rear bumper, any street side skirt, street hood.
Tuning:
Tires: f 28 r 29
Gearing: default ratio 3.60 final drive
Alignment: camber -0.5 -0.7 toe 0 0 caster 5.8
ARB: 7.5 40
Spring: 273 264 ride height 4.1 4.2
Damping: rebound 14.7 17.5 bump 4.4 2.5
Areo: max
Diff: f 20% 0% r 25% 0% center 33%/67%
Again traction doesn't need to come on, if you do want it maybe u want to bump the front and rear a bit, that is up to you.
A850 1994 Twin Turbo Z
This one's got the highest top speed, OSJ friendly...
Engine: engine swap to last drive train, street block.
Handling: Sport brake, race spring, race arb, race tranny, race clutch, sport flywheel, race driveline, race diff, max reduction
Tire: Yoko Race compound, 245/265 width (second to last), 19 inch rim (second to last), Any max weight reduction rim.
Areo: Forza front, Forza wing, Street rear bumper, Street skirt, Street Hood
Tuning:
Tires: 28 29
Gearing: default, 3.8 final drive
Alignment: camber -0.6 -1, toe 0 0, caster 5.5
ARB: 11.7 40
Spring: 326 351 height: 4.2 4.2
Damping: rebound 12.2 17.4 bump 2.3 5.1
Areo: Max front and rear
Diff: f 18% 0% r 40% 40% center 30%/70%