CarX Builder
C3

Track · AWD

BMW M3 GTR Track S/U

M46 (BMW M3 (E46))

by Kelss1k · published on 07/11/2026 · 51 views

Use as a base

312

Power

1250

Weight

298

Max speed (aero drag)

Inputs

Values used for the calculation

The car data entered for this build. Enter the same values to get the same setup on your car.

Engine

Power (HP)
312
Rev limiter (rpm)
7000
Low torque (Nm)
326
Mid torque (Nm)
381
High torque (Nm)
336
Fuel
Sport
Peak power (HP)
312 @ 6873 rpm
Peak torque (Nm)
373 @ 5405 rpm
Powerband (dyno)
5772 – 6873 rpm

Chassis

Weight (kg)
1250
Front weight balance (%)
51
Center of mass height (inches)
9.9
Wheelbase (m)
2.741
Front track (m)
1.5
Rear track (m)
1.51
Front wheel spacer (cm)
13
Rear wheel spacer (cm)
13

Tires

Front tires
305/25 R20
Rear tires
345/25 R20
Front tire grip (index)
1.08
Rear tire grip (index)
1.08

Aero

Drag coefficient (Cx)
0.3
Air Resistance (Sx)
1.94
Front downforce (kg)
38
Rear downforce (kg)
36

Gearbox

Number of gears
6
Default final drive (ratio)
3.444
Default last gear (ratio)
0.76
Gear spacing
Close ratios
Corner exit speed (km/h)
75

Spec sheet

Installed parts

Engine

SB53

  • Block BLC4 Ultimate
  • Camshaft CSH5_high Ultimate
  • Cylinder head HCE4_high Ultimate
  • Fuel system EFS5 Ultimate
  • Intake manifold INT5_rpm Ultimate

Gearbox

T60

  • Gearbox GBT [P] Prototype
  • Clutch CLH [P] Prototype
  • Differential Clutch 65 Ultimate
  • Drivetrain AWD Ultimate

Body

ProFlow

  • Body strengthening Body strengthening ST5 Elite
  • Front aero Front aero [P] Prototype
  • Rear aero Rear aero ST1 Street
  • Fuel tank FT + 40 Elite

Suspension

  • Front springs F_SS [P] Prototype
  • Rear springs R_SS [P] Prototype
  • Front shocks F_S [P] Prototype
  • Rear shocks R_S [P] Prototype
  • Front anti-roll bar F_SB +150 Elite
  • Rear anti-roll bar R_SB +150 Elite
  • Front arms F_ARM [P] Prototype
  • Rear arms R_ARM [P] Prototype
  • Brakes BR [P] Prototype

Wheels

  • Front rims 305/25 R20 Ultimate
  • Rear rims 345/25 R20 Ultimate
  • Front tires Racing Racing
  • Rear tires Racing Racing
  • Front spacers W +0.1 Ultimate
  • Rear spacers W +0.1 Ultimate
  • Tyre compound Racing+ Racing
01

Transmission

Final drive 3.635
Gear 1 3.62
Gear 2 2.68
Gear 3 1.98
Gear 4 1.47
Gear 5 1.08
Gear 6 0.8

Gearbox: T60 (declared by you, in the form or when sharing).

Close ratios: every gear is recalculated so 2nd gear exits your slowest corner at the bottom of the powerband, then the gears tighten up to top speed, each within the in-game slider.

These ratios can only be adjusted in game with a Racing or higher gearbox upgrade (GBT3 and up).

02

Differential

Front

Accel lock 0.38
Decel lock 0.19
Preload 52Nm

Values computed for your car and kept within the sliders of your differential (a Clutch 65 if none is declared).

Rear

Accel lock 0
Decel lock 0
Preload 89Nm

Values computed for your car and kept within the sliders of your differential (a Clutch 65 if none is declared).

Differential: Clutch 65 (declared).

Stability first: the rear must never let go before the front. Preload keeps the inner wheel from spinning over a bump at the throttle you hold through a typical corner (computed from aero and tyre drag) and keeps the lock smooth between throttle and lift-off. Acceleration lock adds only what is still needed so the inner wheel doesn't spin up to 60 % of your lateral grip: on a rear-wheel drive car, more would push the rear out (in-game hint). Coast lock is half the acceleration lock (1.5-way), gentle so the car doesn't rotate when slowing down.

03

Suspension

Front

Stiffness 83.2kNm
Anti-roll bar 31.4kNm
Slow bump 8400
Fast bump 4100
Slow rebound 16800
Fast rebound 10500

Rear

Stiffness 97kNm
Anti-roll bar 19.7kNm
Slow bump 8100
Fast bump 3900
Slow rebound 16200
Fast rebound 10000
04

Steering, camber & toe

Caster 4.66°
Steering angle 47.05°
Ackermann 55.86%
Braking 68.6% AV
Front camber -2.41°
Rear camber -4.24°
Front toe 0.05°
Rear toe 0.099°
Calculation details & input data
Gear 123456
Top speed per gear (km/h) 7196129174236298
Power
312 hp
Weight
1250 kg
Class
C3 (249.6 HP/t)
Front balance
51 %
Rev limiter (rpm)
7000
Wheelbase (m)
2.741 m
Center of mass height (inches)
9.9 inches
Front
305/25 R20 · 1.08
Rear
345/25 R20 · 1.08
Front/rear frequencies
2.5099800796022 / 2.7658633371879 Hz
Target roll gradient
0.077°/g · TLLTD 61.4 %
Curves extracted from the screenshot

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